PTC Model Durometer

Vtg PTC Rubber Hardness Gauge - Model 302 Durometer Complete In Case W/ Manual

Vintage Shore Instruments & MFG Co. Durometer Type A GOOD CONDITION w/ Case

Pacific Transducer 408 Type A Portable Hardness Tester - Hand-held Durometer

PTC Instruments 307L Type D Durometer

PTC Instruments Model 306L Type A Durometer With Case

PTC Instruments Model 307L Type D Durometer

Shore Instruments Durometer Hardness Tester with Original Case. 48895D