A. Kruss Brass Spectroscope, Hamburg, Germany, the 9-in. scope attached to a horizontal arm with adjustment knob for fine tuning, rack and pinion focusing, collimator with dual adjustment knobs on a single plate, turned bone knob on the prism housing lid, all on a cast iron tripod base, ht. 15 1/2 in.
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
19th Century Diminutive Lacquered Brass Spectroscope, Laurent Succ'r do Soleil, 21 Rue di L'oden, Paris, 4-in. dia. horizontal scale engraved as above, stationary scope, and Read more…
Auctioneer:
Skinner
Date:
2018-04-20
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
J.G. Hofmann Direct Vision Spectroscope, Paris, the 18-in. brass tube engraved in part: Spectroscope-Hofmann a Vision directe , with side tube, and rack focusing eyepiece, Read more…
Auctioneer:
Skinner
Date:
2014-06-19
Eight-prism Brass and Cast Iron Spectroscope, unmarked, the 11-in. scope with rack focusing, main prism adjustment drum, and vernier, all secured to a movable arm Read more…
Auctioneer:
Skinner
Date:
2014-05-03
Brass and Iron Spectroscope, Heele, Berlin, 19th century with tripod base supporting a barrel with eyepiece, a barrel with adjustable slit opening, and a circular Read more…
Auctioneer:
Skinner
Date:
2011-07-16
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
