This Antique Microscope 1800s Brass Gem Specimen Dichroscope is Pocket Size. This is an antique 1800s brass gem microscope pocket specimen dichroscope botany floroscope prospect instrument containing a prism designed to view transparent gem material. Instrument has a wonderful original lacquered brass finish in excellent condition. Clean, clear glass lens. No cracks, chips, or scratches. No dents, cracks to the brass. No chips in prism. The instrument works and focuses nicely. It is marked on the top: Cosmo Made in Japan
DIMENSIONS: 2 3/16" long x 1 1/16" in diameter extends to 3 1/8"
CONDITION: very nice vintage condition.