Samuel Blatchford, Yale Lock Manufacturing Company v…
“ The body of the boxes is to be made of wood in the usual manner, viz, a series of pigeon-holes, but the front of the box and the door frame are made of iron, or other suitable metal. Each door frame or box front is so made that it aids in covering the edge of the wooden partition, or pigeon-holes, and is connected with the other frames above, below, and on each side of it in such manner that the frames will make a continuous frontage, no part of which can be removed from the outside without pulling down other parts. ”
