Just bought a 2 inch P&W engine badge from France.
Trying to get a date on it as there are many variations.
Main variations are:
Above eagle- Pratt and Whitney USA vs Pratt and Whitney Aircraft
Below eagle Reg US Pat Off. vs R vs TM Regd ?
Plus Buick, Ford and Canada variations..
Suggestion I read was that Reg US Pat Off dates it to post 39 and change to Aircraft from USA dates it post 45 ?
The one I have acquired is shown below: