PLEASE HELP IS IT WORTH ANYTHING?

I HAVE A MODEL 26 STEWART SPEEDOMETER. MANUFACTURED BY STEWART & CLARK

APPROXIMATELY 3 1/4" IN DIAMETER..IT MUST WEIGH ABOUT 1 1/2 TO 2 POUNDS.

ANYONE KNOW WHERE IT COULD HAVE BEEN USED?..IS IT WORTH ANYTHING..

THANKS FOR YOUR HELP...gbblock@elknet.net