Description
Five (5) objectives and one (1) variable eyepiece.
Four(4) in original canisters, one in later plastic container but Watson.
Canisters and objectives are signed and match. Two (2) bear the 313 Holborn address, two (2) with no address. One nickel plated.
All in seldomly used condition. Good optics. Rare sizes.
Included are:
1) variable eyepiece signed Watson &Sons, Ltd. London with focal length changer from 0-10 mm.
2) Watsons 3 in. parachromatic in black plastic canister, signed Para 3 in. WW, all brass, seldomly used.
3) Holos Oil Condenser signed Holoscopic Oil Condenser N.A. 1.30, number 11194, in nickel and black enamel
4) Apochromatic 2 mm. Oil Immersion N.A. 1.37 in matching canister
5) Holos 6 mm. with correction collar, tube length 1.6 to 2.5 mm. N.A. 0.95 #785, uncovered, never used.
6) Homogeneous Immersion 1/12 inch, N.A. 1.25, never used and in matching brass canister.
Ask the Dealer
Dealer information
Scientifica Opticae Inc.
Scientifica Opticae
Mark Hacking (Scientifica Opticae Inc.) has been an avid collector/dealer for over 40 years. A former Science teacher, he has an innate love for anything natural or mechanical. Specializing in optical (microscopes, telescopes), surveying, medical, weighing and drawing instruments, he is an active participant of the Scientific Instrument Fair in London. Living in Stratford, Ontario, Canada, with his wife and two children; Mark looks forward to meeting as many fellow collectors as possible, and has a worldwide following on eBay (Sciopti). As of Nov. 1/24 my email has changed to either scioptimark@outlook.com or sciopti@outlook.com.

















