The Little Rock Shield was first used in September, 1830.
  Examples are known used until June, 1832. 

The Postmaster at the time was Dr. John T. Fulton,
He was appointed February 8, 1830 and served until December, 1831.
He was appointed again in August, 1835.

The 37 reported examples of the Little Rock Shield are shown in the table to the right..

Illustrations have been collected from auction catalogs, exhibits, and covers scanned directly  Recently, I was able to add 4 scans from correspondence archived at the Univ. of Arkansas in Little Rock Center for Arkansas History and Culture Library (01-25-2021)

The first usage, on September 9, 1830, is the "Type 1" with the shield contained in a square "box". A second strike of the Type 1 is known 7 days later on September 16, 1830.

Either the results were not pleasing to Dr. Fulton, or the device broke.  After Sept 16, 1830,
all reported usages are missing the upper square.

All strikes are in black except for the use on Sept 30, 1830 which was done with red ink. However, this is only from an auction description-the letter containing this has not been seen by me.

Click on the "Cover Source & Link" description to view the cover in a separate window.
Clicking on the image that appears will increase or decrease its size

Updated 2021-01-25.