Red metal steel manufactured by Whitworth and Co.
Specimen, Red metal steel manufactured by Whitworth and Co.. Made in 1876
Red metal steel manufactured in 1876 by Whitworth and Co., and made up into a form suitable for testing the tensil strength by hydraulic pressure
Specimen, Red metal steel manufactured by Whitworth and Co.. Made in 1876
Specimen, Red metal steel manufactured by Whitworth and Co.. Made in 1876