Brass bound lenses, including a Darlot, Paris, an Appleton & Co., a J. H. Dallmeyer no. 6565 with flange, a C. Burr 10 x 8 Rapid Doublet no. 4530 and microscope supplementary lenses.

細節
Brass bound lenses, including a Darlot, Paris, an Appleton & Co., a J. H. Dallmeyer no. 6565 with flange, a C. Burr 10 x 8 Rapid Doublet no. 4530 and microscope supplementary lenses.