PTC Model Durometer

Vintage PTC Rubber Hardness Gauge - Model 302 Durometer - In CASE

PTC Instruments Model 307L Type D Durometer UNIT ONLY

PTC Instruments Model 306L Type A Durometer With Case

PTC Instruments Model 306L Type A Durometer With Case Manual & Catalog

Rex 1600 Durometer Type A Rubber Hardness Gauge USA Original Case Vintage

Shore Instrument Durometer Gauge Type A-2 ASTM D2240 Hardness Tester w/ Case

SHORE RUBBER DUROMETER HARDNESS GAUGE, A-ASTM, W/ CARRYING CASE AND TEST BLOCK