Postage stamp stamps did not need to show the issuing country, so no country name was included on them. The UK remains the only country to omit its name on postage stamps, using the reigning monarch’s head as country identification. Following the introduction of the postage stamp in the UK, prepaid postage considerably increased the number of letters mailed. Before 1839, the number of letters sent in the UK was typically 76 million. By 1850 this increased five-fold to 350 million, continuing to grow rapidly until the end of the 20th century when newer methods of indicating the payment of postage reduced
Presidents of the United States on U.S. postage stamps a bust of Washington by sculptor Jean Antoine Houdon. At the start of the 20th century, George Washington continued to be the most prominent subject depicted on the face of U.S. postage stamps. Washington would remain the most prevalent figure on U.S. postage for most of the 20th century. Only Benjamin Franklin is second to Washington, in part because Franklin is depicted on the numerous denominations of the Washington–Franklin series almost as often as Washington. Ironically, George Washington did not appear on a "commemorative" issue until 1925 when he was featured on a commemorating another historical event. The Washington–Franklin Issues