System metrique methode level

[Wildflowersky]

Hello everyone, I am new to this forum. I am joining this group because I have in my possession a rather rare and, I believe, old object. It is the patented SGDG metric system, the Level method. I have all the tools, but I don't have the manual. I would like to have more information and possibly know where and to whom I could sell it. Thank you.

 

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[Mud Hut]

VOLUME DEMONSTRATION BY THE - Fleaglass

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...

www.fleaglass.com

Contact these folks to see if the might copy the manual for you.

 

[Wildflowersky]

VOLUME DEMONSTRATION BY THE - Fleaglass

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...

www.fleaglass.com

Contact these folks to see if the might copy the manual for you.

Thank you !
Do you have any idea how much I could sell this item for?