Etching, its principles and practice : a book for students and amateurs (1889)
Shrubsole, W. G., d. 1889 · London : G. Rowney · leaf 89
HHH Hardest. HHHHHH Hard and Black. HB Black for Shading. B BB Softer and very Black. BBB Extra Soft and Black. BBBB Softer and very Black. Double Thick Lead. BBBBBBB Very Broad and Black Lead. Firm for Ordinary Drawing. F FF Very Firm and Double Thick Lead. Extra Hard and Black. EHB Ditto, ditto,… … No. 820. Penny Drawing Pencils, made in six degrees, HB, B, BB, F, H, and HH. lod. per dozen. Pencil Manufacturers to His Majesty's Stationery and Schools of Art. 13
Etching
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
