Incredible Brad; and one of those EEs is Paul's
http://parkerguns.org/forums/showthread.php?t=1743
The Parker P barrel is "Damascus Twist", a One Iron Crolle-Twist laminate also called "London" or Baker "Best London Damascus Twist." Very similar pattern barrels are found on LC Smith Maker Baker, H grade Lefever, and Baker Gun & Forging guns. First I've seen on a Parker.