Practical instructions factorial system development (1 Ergebnisse)

Soft cover. Zustand: Good. A small (4 and 1/2 inches high x 3 inches wide) 14-pages brochure, is in G condition, having a small tear in the bottom right first page, some minor stains on front, and typical surface, edge, and handling wear. Not sure of exact date, but looks like maybe c. 1910. Has information on the rudiments of film developing, plus many pages of chemicals, their properties, and prices. Photography. LLB.…