Old Chicago Laboratory Portable Reflecting Galvanometer

Pricing & History

Sold for
Start Free Trial or Sign In to see what it's worth.
Sold Date
Source eBay

This is the last of 4 reflecting galvanometers I have. The other 3 were sold earlier. This one is identical to one of the others and is an early 1900s brass and iron- mirror reflecting galvanometer. Imprinted on the cylinder at the bottom is- The Chicago Laboratory Supply & Scale Co. Inside, it appears that the bottom coil wire is still attached to the floating coil, but I don't know about the top suspension wire. The screws show some rust and t is some rust inside the rectangular coil window, but most of the lacquer on the unpainted brass is still t The 3 legs are black painted brass and the front 2 have adjustable thumb screws for leveling the instrument. One of the 2 screws (or a thumb screw) at the top of the brass tube and 1 thumb screw on 1 of the electrical wire terminals on the side is missing, plus the rim around the circular mirror window is dented. Fortunately the round glass window is unbroken. The instrument stands about 11 3/8 inches tall as seen in my pictures.Winner pays Shipping for 7 lbs. Priority plus Delivery Confirmation (U.S.A.) from my Zip-Code 46761.Insurance is extra and is based on final sale price. The listing form requires that I give the insurance cost before the final price is known so may not be correct.Keep in mind the New USPS "Dimensional-Weight" may cause the shipping to be more than actual weight read more

Items in the Price Guide are obtained exclusively from licensors and partners solely for our members’ research needs.

Flag item for content or copyright

If this item contains incorrect or inappropriate information please contact us here to flag it for review.

If you are the originator/copyright holder of this photo/item and would prefer it be excluded from our community, contact us here for removal.