VOLUME DEMONSTRATION BY THE “SYSTEME METRIQUE” OF J. LEVEL OF STRASBOURG, French, c. 1885, signed on a brass plaque “Système Métrique, Methode LEVEL, Breveté, S.G.D.G.” The system comprises linear, square, and cubical containers of plated sheet steel, plus a square wire grid, plus the original instruction manual. The containers are life size; thus the linear one is constructed with ten compartments each one centimeter on a side, and thus each with a volume of one cubic centimeter. The square
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