Inspecting a dual output shaft speed reducer - photo

Inspecting a dual output shaft speed reducer at the Falk Steelworks in Milwaukee, Wisconsin, 1969.

https://s3-us-west-1.amazonaws.com/h...ed_reducer.jpg


Previously:

https://www.homemadetools.net/forum/...198#post157804
https://www.homemadetools.net/forum/...640#post155557
https://www.homemadetools.net/forum/...458#post162192
https://www.homemadetools.net/forum/...934#post140623
https://www.homemadetools.net/forum/...964#post152981

I don't know what he is indicating that has merit, tooth depth comparison seems very late in assembly for that, must be a staged photo.