Focusing Capability Aimed Inside the Chamber. Has 2 Small Glass Vials Underneath for an Electrolyte. Type Battery which is Charged by Turning the Hand.Cranked Static Electric Generator on the Side. Stores Securely in it's Original Mahogany Box. No Maker Mark I Could Find. Hand Written Instructions in Spanish Language.
Measures 7 3/4 x 3 5/8 x 6 3/4 inches. Weight Including Box is 5 1/4 Pounds. You Will Not Be Disappointed Folks.Estate Fresh on Boston's North Shore. _gsrx_vers_1233 GS 8.1.1 (1233). This item is in the category "Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Other Antique Science Equip".
The seller is "hieronymus3" and is located in this country: US. This item can be shipped worldwide.