The Nineteen-cent Prexie
The nineteenth President of the United States was Rutherford B. Hayes, who served from 1877 until 1881. The design forhis Prexie stamp was taken from a Presidential medal manufactured by the United States Mint. Nineteen-cent Prexies were only issued in sheet format.
Nineteen-cent Prexies were first issued on November 10, 1938. A total of 102, 662, 900 were issued from then through 1956.
There were very few solo uses of the nineteen-cent Prexie. Some possibilities were a double-weight special delivery letter from November 1, 1944 until the end of 1948, a special delivery airmail postcard from the first of 1949 until the end of 1951, and a special delivery letter from a member of the armed forces serving outside the United States, from November 1, 1944 until October 1, 1946.
Other possible solo uses include parcel post and certificates of mailing.