argon/mercury luminescent tube
Date: circa 1930
Inventory Number: 1998-1-1544
Classification: Discharge Tube
Dimensions:3 x 7 x 3 cm (1 3/16 x 2 3/4 x 1 3/16 in.)
storage: 6 x 11 x 6 cm (2 3/8 x 4 5/16 x 2 3/8 in.)
Accessories: stored in a brown cardboard box
Description:
A corex glass tube consisting of a cylindrical section with a tip on one end and a sphere at the other end. It is filled with argon gas, mercury vapors, and a few visible mercury droplets. No visible electrodes.
It has some dark residue near the tip of the bulb.