Automultiplicateur Eggis, calculating device for multiplication and division by Charles Durieu and Co., Vevey, Switzerland, c. 1920, for eight figures, painted metal and varnished card in folding wallet with printed instructions; stylus missing
Automultiplicateur Eggis, calculating device for multiplication and division by Charles Durieu and Co., Vevey, Switzerland, c. 1920, for eight figures, painted metal and varnished card in folding wallet with printed instructions; stylus missing