1957 telephone selector.
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Previously:
https://www.homemadetools.net/forum/...812#post183245
https://www.homemadetools.net/forum/...320#post173101
https://www.homemadetools.net/forum/...465#post158563
https://www.homemadetools.net/forum/...541#post162562
https://www.homemadetools.net/forum/...827#post163791
https://www.homemadetools.net/forum/...599#post185940