John N. Luff

“ Embossing is a variety of printing connected with both line engraving and typography. Embossing dies are produced by sinking lines in the plate but, as a rule, they are intended for such productions as stamped envelopes and the sunken portions are a series of hollows rather than sharply cut lines. An envelope, viewed from the reverse, will give an excellent idea of the appearance of such a die. In printing from these dies very heavy pressure is used and the paper usually is backed by a piece of leather or something of similar nature. ”

“ Having duly considered the design, printing and paper of stamps, the next thing to attract our attention is the gum. Most gums are prepared from potato starch, dextrin or gum arabic. Gelatin is sometimes added to supply body and glycerine to give smoothness. Gum varies much in thickness and color. The first three cent stamp of the Danish West Indies furnishes an instance of this. The stamps were sent from Denmark without gum, as is frequently done with stamps for tropical countries. ”

“ A is the roll in the carrier. The die is placed on the table or bed B. The roll is held against the die with a pressure of many tons, obtained by compound leverage. By means of the wheel, E, and the connecting pinion and rack, the bed, carrying with it the die, is moved back and forth under the roll. This is called "rocking" and by it the soft steel of the roll is forced into the die and a reverse impression of the design is obtained. The roll is then hardened and, by a reversal of the process, impressions from it are transferred to the steel plate from which the stamps are to be printed. ”

“ The surface is carefully ground and polished to a mirror-like brightness. Any work which is to be reproduced many times, such as postage stamps and parts of bank-notes, is made on small pies of steel called dies.
If the design to be used is in the shape of a drawing or engraving, a sheet of gelatin may be laid over it and the outlines traced with a sharp-pointed instrument. More often a photograph is taken on a ferrotype plate and the outlines scratched into the plate. These outlines are filled with vermilion. A piece of paper is then laid on the plate and the two passed through a hand-press. ”

“ Philately embraces the whole earth and likewise the whole earth is sometimes embraced within the limits of a postage stamp. As an example of this, witness the recent effort of our Canadian cousins in 5celebration of the achievement of the long-desired ocean penny postage, at present an inter-colonial rate of the British Empire, but some day to be an international rate. ”

“ Hand made paper is made by means of a mould and a deckle. A mould is a piece of fine wire gauze, tightly stretched on a wooden frame. If the paper is to be laid, coarser lines are woven in the gauze. If it is to be watermarked, the designs, made of wire bent in the desired shape or of bits of metal, are fastened to the surface. A deckle is a narrow wooden frame which fits on and around the sides of the mould. The deckle is movable, in order that it may be used with more than one mould. The mould is dipped in paper pulp and a quantity taken upon it. ”

“ These machines rule either straight or curved lines. They can be adjusted to rule several thousand lines to an inch, but that is only done for microscopical work, not for engraving. The general principle of a medallion ruling machine is a rod, fixed on a pivot, at one end of which is a pin which is drawn across a medallion, while at the other end a graving point traces a corresponding line on the steel. The large stamps issued in the United States in 1865, for the payment of postage on newspapers and periodicals, are examples of this work. ”

“ Geometric lathework was used on a number of the United States stamps of the issue of 1861 and also on the $5,000 revenue stamp. The work of this machine is regarded as a great safeguard against counterfeiting. The most skillful engraver would have difficulty in imitating the simplest designs produced by it. The machines are too expensive to be obtained by anyone but a government or a great banknote company and there are very few men who thoroughly understand operating them. ”

“ One of the nightmares of every government is the fear that its securities will be counterfeited or tampered with. I have several times mentioned precautions against such abuses in the shape of fine engraving, watermarks, enameled paper, sensitive inks, etc. There are numerous other devices which have been used with the same end in view. The patterns here shown were printed on the backs of the stamps in blue ink. ”

“ In the case of postage stamps, where it is desired to exactly duplicate the design many times on a plate, recourse is had to transfer rolls. A transfer roll is a piece of soft steel, in shape a cross section of a cylinder. The edge is sufficiently wide to receive an impression from the die. ”

“ The work is inferior in quality and too easily counterfeited to commend itself. In lithography the lines of the design are neither sunken nor, to any appreciable extent, raised above the surface. The design is practically a drawing, in a certain greasy ink, upon stone of a particular quality. When several colors are used, as in chromo-lithography, a separate stone is prepared for each. The design is sometimes drawn directly on the stone and at 44others transferred to it. For stamps a die is made in wood, metal or stone. ”

“ In addition to the things to be learned from the pictorial part of stamps, there are other things which attract the attention of the thoughtful and bring with them knowledge that is both interesting and valuable. The mechanical part of stamp making may be studied with much profit and entertainment. ”

“ If, by any mistake in making or re-entering a plate, the roll is incorrectly placed and then changed to the correct spot, a double impression of some of the stronger lines will result. This is called a "double transfer" and sometimes, though wrongly, a "shifted die." These double transfers are quite common in the United States stamps made before 1861 but are scarce in the late issues, either because the work is now more carefully done or because any mistakes have been corrected. ”

“ Until the early part of the present century copper was practically the only metal used for engraving. Only a limited number of impressions can be taken from a copper plate because it wears rapidly, and it is not suited to such work as the production of postage stamps. About 1830 the way was found to make steel of sufficient softness and fineness of grain to be available for engraving. To-day annealed steel is almost exclusively used for this purpose. Annealed steel is steel which has been soft 26ened without being decarbonized. ”

“ But our little weaknesses are now well understood by those who are exploiting the commercial side of postage stamps and we have reason to fear that many recent surcharges were made for revenue only and not from any real necessity. The majority of surcharges are made to supply a value which has 65been temporarily exhausted. For example, many of the British Colonies obtained their supplies of stamps in London. It may happen that an order is not placed early enough or there is delay in filling it and delivering the stamps. ”

“ The best paper is made from linen rags but many other substances are used, cotton rags, esparto grass, straw, etc. Very common paper, such as that used for the daily newspapers, is made from wood pulp. Paper is made in two ways, by hand and by machinery. ”

“ The geometric lathe is a most delicate and complicated machine. By means of elaborate attachments very involved and eccentric motions are given to the plate under the graving point and extremely complicated and beautiful designs are produced. ”

“ Watermarks are designs impressed in the paper pulp. The paper is slightly thinner in the lines of these designs and appears lighter when held to the light. Of course you are all familiar with this appearance from having noticed 50the watermarks in note paper. On rare occasions the watermark is a thickening of the paper instead of a thinning. In such a case the watermark appears more opaque than the paper. Watermarks in paper used for stamps are, of course, intended as a security against counterfeiting. ”

“ But too often, we fear, these picture stamps are produced merely with a view to their ready salability to collectors. More frequently than not, these brilliant labels are the product of a distant country and are no longer indicative of the artistic status of the country by which they are 8issued. For example, a late issue from the Tonga islands but made in London. Indeed, the wilds of Africa, the distant islands of the Pacific and the tumultuous republics of Central America far outshine the cultured countries of the old world in their postal stationery. ”

“ The general principle of all perforating machines is a series of hollow needles, which remove rows of small disks of the paper from between the stamps, and thus fit them to be readily torn apart. For convenience of reference and description philatelists have adopted, as a standard of measurement, the space of two centimetres. The gauge of a perforation is determined by the number of holes in this distance. ”

“ They are very sensitive to water and are regarded as one of the best preventatives of the cleaning of used stamps. Beautiful results are obtained by printing stamps in two colors. Of course, this necessitates the use of two plates for each design. This also gives rise to some interesting varieties, caused by one part of the design being printed upside down. Such oddities are scarce and are highly valued by philatelists.
When a plate is to be printed from, it is first warmed, then the ink is applied and rubbed into the lines with a pad. ”

“ This process is so perfect that the most delicate lines of the die are repeated with absolute fidelity on the plate. When many plates of a stamp are likely to be needed, it is customary, in order to avoid risk of wear or damage to the original die, to make duplicate dies, called transfer dies, and from them the necessary rolls to make the plates. ”

“ This reproach cannot be applied to philately. It teaches even the unwilling and careless. In the effort to fill the spaces in their albums they must learn what varieties they are lacking and in what these differ from other and similar varieties. ”

“ When the end of a strip was reached another was attached to it with gum, in order that the process might be continuous. It frequently happened that an impression was printed upon or partly upon the overlapping ends of the strips. In the course of time these ends became separated and thus we find stamps embossed partly with and partly without color and occasionally entirely without it. Philatelists call these varieties semi-albinos and albinos. The latter term is also applied to envelope stamps which have been embossed without the die being inked. ”

“ In this the machine removes small diamond shaped pieces from the paper. The effect before the separation is shown between the pair of stamps, while the outer edges show the appearance of single copies.
A variety of machines are used in perforating stamps. One perforates only a single row of holes at a time. This is known as the guillotine machine because its action suggests that unpleasant instrument. Another machine is called the comb machine because the needles are arranged to perforate across the top of a row of stamps and at the same time between the stamps of that row. ”

“ The animal world has been thoroughly exploited by designers of stamps and many curious products have they shown us. This creature with the fine open countenance hails from North Borneo but 14it is said that similar creatures have been seen by earnest philatelists after an evening of study in the billiard room of the Collectors Club, followed by a light supper of broiled lobster and welsh rarebit. ”

“ In recent years aniline colors have been largely employed. They afford an elaborate range of shades and color combinations which are most puzzling to describe. Soluble inks are much used by the leading English firm of stamp printers. ”

“ Such a correction is effected by turning the plate on its face on a hard substance, hammering on the back until the surface is driven up smooth and then entering the design anew.
31A number of very delicate machines are used as aids to the engraver, though much more for bank-notes and large pieces of work than for postage stamps. These are called ruling machines, medallion rulers, cycloidal and geometric lathes. Ruling machines are used to make the backgrounds of portraits, the shadings of letters and similar work. ”

“ These are interesting for their crude and curious designs but are not popular with collectors, probably because of our inability to read them.
Afghanistan has varied the idea by placing on her stamps a tiger's head surrounded by a broad circle of inscriptions. Owing to the short comings of native art the tiger is more often droll than ferocious. ”

“ The central device is an ancient Chinese symbol which represents the dual principle in nature, the male and the female, the beginning and the end, the union of 75all opposite forces, of which the highest product is man. ”