Antique Bausch & Lomb Brass Microscope Lens Canisters Mahogany Holder and 1 Lens

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Antique Bausch & Lomb Brass Microscope Lens Canisters Mahogany Holder and 1 Lens:
$48.00

All containers marked Bausch & Lomb Optical Co. Rochester N.Y., one marked New York City. Two are marked 2/3, two 1/6, and one 1/12. These are made of brass and there are varying degrees of age-related wear and pitting of the brass.
Only the container marked 2/3 has an actual objective/lens; the others are empty. The lens is in the same age-related wear as the rest of the items; I do not know anything about microscopes so if you have a specific question please ask.
Everything comes in original leather lined mahogany box.
Containers Height. 2 1/8\", Diameter. 2\"
Mahogany Case Length. 7 1/2\", Depth 1 1/2\", Height. 2 1/8\"
This is an AS IS item, returns are not accepted. Ask questions first.