I don't doubt you but I've never seen a red "P" so have no context. What model faucet did you spot that on?
There have been numerous versions of many Perlick faucets, with a bit more subtle changes to the logo. Eg: My first gen 525ss faucets have the logo engraved sans any paint, but later versions filled in the engraving, then later changed the font slightly, skipped the engraving completely and just went with paint...
Cheers!