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 120
111. Now, here we have a representation of two letters cutout of a solid substance, the gradations of tint and theshadow being distinctly marked. The light, it will benoticed, comes from behind the spectator, striking thaletters obliquely on the right-hand side. The front ofthe letters is in high… … much darker, as it is not only not illuminated, but has ashadow thrown across it. It will be seen that the un-der thickness is even deeper in shade than the shadow.This would not be the case if the thickness of the blockswere painted white, the same as their front surface ; but,being red, the shade…
Embossing (Printing) · Signs and signboards, Glass
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Champ fleury : au quel est contenu lart & science de la deue & vraye proportio[n] des lettres attiques, quo[n] dit autreme[n]t lettres antiques, & vulgairement lettres romaines proportionnes selon le corps & visage humain ... (1529)](https://img.insideoutlibrary.com/img/200/ia-champfleuryauque00tory-96-65.webp)
