Wheels of a Clock Small 212×320 Medium 425×640 Large 680×1024 Download Tiff Original 1593×2400 | (3.7 MB) Description A clock is run by wheels. Each wheel turns another to keep the clock running. Keywords clock wheels, how a clock works, inside a clock Galleries Gears Source: The Teachers' and Pupils' Cyclopaedia (Kansas City: The Bufton Book Company, 1909) 1:373
