U.S. Scott 828, 807 Prexies on Registered Return Receipt 1946 Ad Cover

U.S. Scott 812 Prexie and FA1 Certified Mail on U436 Stamped Envelope

U.S. Scott 812 7 Cent Prexie USPOD First Day Announcement Card

U.S. Scott 825, 810, 806 Prexies on Registered Return Receipt 1946 Cover

U.S. Scott 807 (5) Prexies on 1949 Air Mail Cover to Germany

U.S. Scott 825 (2) Prexies and C39 Airmail on Registered 1956 Cover

U.S. Scott WX32 Tied to December 1924 Post Card

U.S. Scott 817 12 Cent Prexie Solo on Double Weight Air Mail Cover

U.S. Scott 807 3 Cent Prexie on Double-Sided Ad Cover for Hotel Vendome

U.S. Scott 815 (2), 804 Prexies, on Registered Scott U436 Stamped Envelope