How much is a hemingray 9 patent may 2 1893 worth?

I assume they are in the typical "blue/green/aqua" color. Millions of those have been produced over the years. They an quite common, and have no significant value. Other colors, purple, jade and others can be more valuable.

Additional information about this insulator can be found at

http://www.insulators.info/general/profiles/106hemi.htm

The "MAY 2 1893" date refers to the "drip points" (bumps) on the bottom of the insulator. This is the patent for those:

http://reference.insulators.info/patents/detail/?patent=496652&type=U

Bill Meier
www.insulators.info Webmaster

First answer by ID405348168. Last edit by ID405348168. Question popularity: 1 [recommend question]