Charles Godfrey Leland,
A Manual of Mending and Repairing…
“ I go so far as to say that an exhibition of specimens showing all that can be done in mending and restoration in ceramic art, leather, carved stone, books, carved and wrought wood, castings, metal, furniture, fans, and toys, would probably serve as sufficient beginning to establish classes and a school. The objects should, when possible, be accompanied by a duplicate or photograph showing the condition they were in before restoration, on the principle of the picture-cleaners, who amaze the public with such startling contrasts of dirt and splendour. ”
