The eagle has always been on the logo,originaly it said Pratt&WhitneyAircraft.It has always been used for ONE purpose only,Starting with the WASP Radial Piston Engines to todays Jet Engines.Don't believe Pratt&Whitney ever had anything to do with rifling machines.
Engine badge... I found one a couple months back with no paint and the tips of the wings were cut off making the badge completely round. Will try and post some pics. It was found in south Texas at some properties next to a university, now slowly being turned into parking lots