Postage Stamps of the United States First Issued in 1921

Presidents: Jan. 1 – Mar. 4: Woodrow Wilson · Mar. 4 – Dec. 31: Warren G. Harding.
Postmasters General: Jan. 1 – Mar. 4: Albert S. Burleson · Mar. 5 – Dec. 31: Will H. Hays.
Domestic Letter Rate: 2¢ per oz. · Postcard Rate: 1¢ · Air Mail Rate: 6¢ per oz.

The following postage stamp varieties were first issued by the U.S. in 1921:

No new varieties of U.S. commemorative stamps were issued in 1921.
No new varieties of U.S. Air Mail stamps were issued in 1921.
No new varieties of U.S. Special Delivery stamps were issued in 1921.
No new varieties of U.S. Postage Due stamps were issued in 1921.

Ordinary issue:

Scott 543 – 1¢ Washington Experimental rotary perf 10 – EDU: 5/21/21.
Scott 545 – 1¢ Washington coil waste perf 11 – EDU: 6/25/21.
Scott 546 – 2¢ Washington coil waste perf 11 – EDU: 5/5/21.

Sidebar