ID: 
2204
Maker's Name: 
Santok
Where made: 
Japan
Dimensions: 
14.9 × 3.7 × 0.4 cm

A small plastic slide rule suitable for the pocket.

Can be used to multiply, divide, find square and cube roots, reciprocals, proportions, sine, cosine, tangent, and base-10 logarithms.

Use of the trigonometric scales requires inverting the slide. The cursor is missing.