$1,230
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 which adjusts the eight prisms that are attached to the horizontal main plate, fixed arm having a 12-in. collimator tube with an adjustable drum, all attached to the rotating section of the black-painted cast iron tripod base, ht. 17 in.
Auctioneer:
Skinner
Date:
2014-05-03