Paper tensile tester made in Austria and supplied by J. J. Marshall and Co.
circa 1900
Pocket-sized paper tensile tester made in Germany and supplied by H.Bertram and Co.
circa 1890
Sir W. H. Bailey paper tensile tester
paper tensile tester
1900
Pocket-sized paper tensile tester made in Germany and supplied by H.Bertram and Co.
circa 1890