Hello all ..here is a link to see an early cast CLW Alco PA ..pulling a set of Joe Fischer cars.
easy to see the 17/ 64ths scale of the PA tower over the 1/4" scale of the cars .
Unknown if the later cast / etched CLW PA's are 1/4 or 17/64ths scale ...
https://www.youtube.com/watch?v=YgmJjgC99zw
cheers Carey