Vintage Granville Mathematical Set Instruments Brass Compass Ruler Age and usage related marks with some slight rusting to the inside of case. Name carved into the half circle. Please see pictures for measurements and a better reference on the condition I post the next working day. Check out my other interesting items by clicking on the see other items at the top of the page Any questions, please feel free to email me by using the ebay messaging system, i will combine domestic postage on multiple purchases. All international sales are sold through Ebays GSP shipping.