Kevin, it sounds like the passenger side fender has a later emblem. From '71-'75 or '76 the P has the red-white-blue insert. The kicking filly also has small eyes. The hollow P years ('77-'80) have the hollopw P and the filly has big bulgy eyes. Sometimes on the earlier emblems the red-white-blue insert falls out but the P still has the chrome or pot metal backing.

The emblems, depending on the year-see above) are supposed to all be the same on both fenders and rear.  I'm thinking someone might've stuck a latter-day Pinto emblem on that passenger fender... unless it has that chrome backing. My green '73 wagon has a passenger-side emblem whose red-white-blue insert fell out. Fortunately it fell out on the driveway, so I will be able to glue it back on. 

lol the mighty emblem was what drew me to the great car that is the Ford Pinto as a dumb little kid. I got a bunch of 'em from junkyard cars and that's how I figured out the years of which emblem went on what year Pinto.  Thank you, though. I'll take atta-girls anytime I can get 'em! 

Awww stop it. (blushes). 

You're welcome.