| The picture shows a view of this Old Boxed Mechanical Calculator With Pen & Instructions. The year that this calculator was made is unknown but it is old. The front and back of the box have the same image and wording. It pictures the calculator and is marked as follows: World's Handiest
Vest Pocket Adding Machine
Price $3.50 The calculator has a gold square on the black back that was probably for engraving. The calculator appears to be unused. It reads as follows: BABY CALCULATOR
CHICAGO, U.S.A.
PATENT APPLIED FOR
ADDITION
SUBTRACTION
MULTIPLICATION
DIVISION The original metal pen is included and pictured as well as the folded instruction sheet. To judge the sizes the box measures 3-1/4'' x 6'' x 1/2''. The calculator is in mint condition and the box is excellent with only light shelf wear as pictured. | 
