Note 60 — Chapter VI · SOME KINKS IN PHOTOGRAPHY
Reading edition
The L. E. Knott Apparatus Co., Boston, Mass., sells a 2 inch condensing lens for 50 cents; a 3 inch one for 75 cents, and a 4¹⁄₂ inch one for $1.10.
Reading edition
The L. E. Knott Apparatus Co., Boston, Mass., sells a 2 inch condensing lens for 50 cents; a 3 inch one for 75 cents, and a 4¹⁄₂ inch one for $1.10.