Volvelles, Wheel Charts and Slide Charts

Some more wheel charts [aka volvelles]. Click on the volvelle tag on right for more posts about volvelles.

The empire on which the sun never sets - made for The Children's Encyclopaedia

Great inventions and wonders. Produced by A Knapp of New York in 1931.  Ten inches in diameter.

Armoured cavalry Beale Wheel from 1970s

Soviet weapons whiz wheel.  Produced by US Army Intelligence in 1975.  Provided data on 36 Soviet and Warsaw Pact weapons systems.  Four inches in diameter.

Golf wheel. Copyrighted in 1952. An Arnold Palmer branded version was released in 1966.