P
Peloponnesus [ANS Garrett papers, box 12, card indexes], T. Harrison and John Work Garrett
Pennsylvania Association of Numismatists
Perkins, Jacob
Phipps, Jason
Pickering, Timothy
Pittsburg National Bank Of Commerce
PNG Authentication Certificates
Pontus [ANS Garrett papers, box 12, card indexes], T. Harrison and John Work Garrett
Professional Numismatists Guild (PNG) Archives
Proskey, David U.
Provinces [ANS Garrett papers, box 12, card indexes], T. Harrison and John Work Garrett