Convertible Lens by an Unknown Maker, c. 1900

6 Brass Lenses, c. 1875–1890

Giant Lot of Lens Connecting Rings

Landscape Lens "16 x 20", c. 1870

10 Brass Landscape Lenses, c. 1880–1910

10 Brass Portrait and Landscape Lenses, c. 1880–1900

Large Lot of Optical Books, 1843 onwards

"The Wonders of Optics", 1875

"Raupe" Projection Lens, c. 1899

Petzval-Type Portrait Lens, c. 1865

German Literature: Optics/Lenses, History and Evolution, 1897 on

13 Brass Lenses with Short Focal Lengths

20 Brass Lenses (for Restoration), c. 1845–1870

8 Brass Lenses and Magnifying Glasses

12 Brass Lenses

10 Brass Lenses, c. 1880–1900

15 Brass Lenses, 1870–1920