Details
A 'Millionaire' Calculating machine
by Hans W. Egli, Switzerland, No. 3285, with eight rows of nine buttons for addition, subtraction, multiplication and division, crank turn, in painted metal case with instructions and tables inside the lid, on later tubular painted metal stand with extending side table and electric motor drive for the calculator below -28in. (71cm) wide overall; and an Imperial Protectograph, boxed (2)
by Hans W. Egli, Switzerland, No. 3285, with eight rows of nine buttons for addition, subtraction, multiplication and division, crank turn, in painted metal case with instructions and tables inside the lid, on later tubular painted metal stand with extending side table and electric motor drive for the calculator below -28in. (71cm) wide overall; and an Imperial Protectograph, boxed (2)