This is a small vial with antique radium gauge parts inside it. Unlike other rad tester items, it is very small, and fully sealed (potted with epoxy) so the radium will not get out. It is strong enoug
This is a Picket slide rule from the Cleveland Institute of Electronics and the patent date goes back to 1964. The slide rule is a plastic I think with metal on all the edges including the center slid
Antique Microscope Slide by Clarke & Page. Marine Zoology. Protozoa. Haliphysema Tumanowiczii. A rare Foram parasitic on Crissia. Diatoms Isthmia etc. See images for condition. Excellent. I ALSO B
Mining Districts and Mineral Resources of Nevada Paperback book by Francis Church Lincoln. Published in 1982. It is a photographic reproduction of the 1923 first edition. It is in great condition, all
An unusual old medical instrument. Used, I understand both for phrenology and more traditionally main stream medical purposes, a pair of cranium callipers. Made by Maw of London, with hand punched num
Vintage Soviet Russian Binoculars BPC 10x50 TENTO original leather caseFor sale is BPC 10x50 Russian binoculars Tento' SpecificationsLens diameter [mm]50Magnification [x]10Angular field of view [deg]5
History of science. This is a shanked microtome knifes with a rectangular blade and handle. Date ca 1880-1890. The knifes is stored in a flat black leather case lined in maroon velvet and red silk. .
Last of 2 vintage Los Angeles California 5/8ths by 5/8ths marked Sterling ,Entenmann nursing college pin with little to no wear and a working pin. It weighs 2.6 grams.
THIS ANTIQUE WOOD COAL MINERS CANARY CAGE IS IN VERY GOOD ALL ORIGINAL CONDITION AND IS A FANTASTIC EXAMPLE OF AMERICAN FOLK ART. THE CAGE WITH CANARY WAS USED BY COAL MINERS TO DETERMINE THE AMOUNT O