Sold for:
$277

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.


Skinner

Auctioneer:
Skinner

Date:
2014-04-29

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