Happy Thanksgiving everyone.
I am looking at some wheels and at least 1 has two keyways. Could truck have 2 keyways and would these wheels fit on a 1923 Touring?
No, it's very rare to see a hub with two keyways - and the likely reason would be a repair for a damaged keyway caused by running the wheel loose on the axle. Always check so the hub nut still is tight after some driving.
TT trucks had much thicker axle shafts so a TT truck wheel wouldn't fit on a Touring car axle. From 1925 Ford made roadster pickup trucks - they had the same wheel options as all the other models on the car chassis.