On January 11, 1978, the USPS issued its smallest postage stamp, featuring the famed Indian Head Penny.
In the late 1970s, the USPS began looking into new ways to lower their production costs and increase their output. Eventually, they decided one possible way to achieve both of these goals was to make stamps smaller.
So in 1978, the USPS decided to test the idea. They chose as the design for the stamp the 1877 Indian Head Penny. The penny itself measured .75 inches, while the new “midget” stamp would be .54 x .66 inches. This smaller size meant a pane of stamps could hold 150 stamps, rather than the standard 100.
The experimental stamp was issued on January 11, 1978, in Kansas City, Missouri. The stamp was only available for use in five cities: Hartford, Connecticut; Richmond, Virginia; Portland, Oregon; Memphis, Tennessee; and Kansas City, Missouri. The USPS wanted to test the smaller stamp’s popularity on a smaller scale before rolling out its usage nationwide.
In the end, postal customers in these test cities were unimpressed with the stamp’s smaller size. They said it was too small to handle and could easily be lost.
And if you’re curious, the largest US postage stamp was issued nearly 20 years later on December 10, 1997. The $3 Mars Pathfinder stamp measures 3 inches across by 1.5 inches high. (Newspaper and periodical stamps issued in 1865 were larger.) The stamp pictures the first image sent from the Pathfinder, the remote-controlled vehicle, Sojourner, which collected data about the soil and rocks, with the Mars landscape in the background.
The Pathfinder stamp also has special “USA” perforations on the bottom row of perfs. And the vertical perfs extend beyond the stamp to the bottom of the selvage for easier removal of the stamp. Hidden words were incorporated into the design and are visible with a stamp decoder. They read “USPS” and “MARS PATHFINDER • JULY 4, 1997” in alternating lines.
Click here to read about other small stamps from around the world. You can also order one of those stamps below:

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This experiment was tried again with the 1980 15-cent Dolley Madison stamp.
I remember when these puny stamps were issued, I thought they were pretty cool. I bought a few sheets for postage and stashed a couple sheets for my collection. In addition, I also have an Indian-Head Penny collection.
I to remember these. My Mother bought a sheet for me and gave it to me on my 16th birthday and I still have it. She was always trying to help me with my stamp collection even though she had no interest in stamps. She even bought me full year sets for the post office while I was away in the service.
My mother advised me and helped me arrange to buy plate blocks from a neighbor postal worker but then my Aunt wanted me to get stamps for her. When I showed her I only got one plate block of Amelia Earhart she said she wanted it. I gave it up, told my mom what happened and then we were done with plate blocks. Auntie taught me how to get first day covers.
Earhart plate block gotten later in life- my hero. As an adult, I bought sheets instead of plate blocks and some stamps with errors though many were printed like the lighthouse error etc. I started collecting around 6th grade.