- Back
-
Title: Set of change wheels as follows : 2 of 20 teeth & 1 each of [Go to resource]
Description: Set of change wheels as follows : 2 of 20 teeth & 1 each of the following : 25, 30, 35, 38, 40, 45, 50, 55, 60, 65, 70, 75 [viz 14 plain wheels]; a pair of 56 & 21 teeth (lacks 8 teeth) & 1 collar License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1983-777/8 Go to resource More Like this...
[Edit] - Back