Stained glass work : a text-book for students and workers in glass (1905)
Whall, Christopher, 1849-1924 · New York : D. Appleton · leaf 71
with a sheet of glass in it, and a ledge to Painting (elementary) rest your bit of glass on and a leg to stand out behind, will do, and by all means get it made (fig. 23) ; but do not spend too much on it, for later on you will want a bigger and more complicated thing, which will be described in… … Fig. 23. come to it when we come to deal with work made up of a number of pieces of glass, as ail windows must be. This that you have now, not being a window but a bit of glass to practise on, what I have described above will do for it. A note to he always industrious and to work with all your…
Glass painting and staining
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.