Olsen Tensile Tester later adapted for compression testing and motorised
Olsen Tensile Tester later adapted for compression testing and motorised, c. 1946
Olsen Tensile Tester later adapted for compression testing and motorised, c. 1946
Olsen Tensile Tester later adapted for compression testing and motorised, c. 1946
Guard from Olsen Tensile Tester later adapted for compression testing and motorised, c. 1946