60.82.161

Pantograph

1920 Approximate

Pantograph. Material: wood, metal. Size: 1 1/4" W. x 16 1/2" L. (folded). Description: four wooden jointed rods connected with silver metal screws and two metal eye hooks form two expanding v-shapes (parallelogram); one arm holds a pencil; one arm holds a pointer; by changing positions of the arms in the linkage between the pointer and drawing arms, the scale of an image can be changed

Used to draw maps. Used for copying drawings, maps, etc., to any desired scale.