Sign writing and glass embossing : a complete practical illustrated manual of the art, to which are added numerous alphabets (1890)
Callingham, James · Philadelphia : H. C. Baird & co. · leaf 129
now, if we shift our position, so that the vanish-ing point, instead of being near the side of the board,falls in the middle of the horizontal line, the result willhe that the letters will diminish as they recede muchmore rapidly, and it will be correct to have some per-spective writing in another… … side of the building supports a line of letters, which areattached as raised blocks to the walls. Another row ofletters stands on the floor, and, b^ing in front of thespectator, does not vanish, but it will be noticed that thethickness of the letters is in perspective and tendstoward the vanishing…
Embossing (Printing) · Signs and signboards, Glass
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