John Browning Spectroscope, 68 Strand, London, the horizontal disc engraved as above and calibrated 0-120 with magnifier, fine adjustment knob for vernier, dual prisms (lacking), 11-in. scope with rack and pinion focusing and collimator tube (lacking collimator), all raised on a center shaft and tripod base, instrument ht. 11 1/2 in.
Auctioneer:
Skinner
Date:
2014-04-29
John Browning Spectroscope, London, the horizontal disc engraved "John Browning, London," and calibrated 0-120, fine adjustment knob for vernier, dual prisms, 11-in. scope with rack-and-pinion Read more…
Auctioneer:
Skinner
Date:
2017-10-27
John Browning Spectroscope, London, the horizontal disc engraved John Browning, London and calibrated 0-100, fine adjustment knob for vernier, magnifier, dual prisms, 11-in. scope with Read more…
Auctioneer:
Skinner
Date:
2014-06-19
John Browning Spectroscope, London, the horizontal disc engraved John Browning, London and calibrated 0-120, fine adjustment knob for vernier, dual prisms, 11-in. scope with rack Read more…
Auctioneer:
Skinner
Date:
2014-05-03
John Browning Spectroscope, London, the horizontal disc engraved John Browning London and calibrated 0-120, fine adjustment knob for vernier, magnifier, dual prism plate engraved Telford Read more…
Auctioneer:
Skinner
Date:
2014-05-03
John Browning Lacquered Brass Spectroscope, 63 Strand, London, 19th century, 5-in. tube engraved as above on one side and on the other side "Grace's Spectroscope," Read more…
Auctioneer:
Skinner
Date:
2017-10-27
John Browning Brass Spectroscope, 139 Strand, London, 7478, with a 9-in. telescope and collimator, both with rack focusing, horizontal enclosed scale engraved as above, all Read more…
Auctioneer:
Skinner
Date:
2014-04-29
Seven 19th Century Spectroscopes, London, lacquered brass instruments, five marked "John Browning," two with stands, an unmarked one, and a R. & J. Beck "Thorp's Read more…
Auctioneer:
Skinner
Date:
2018-04-20
