"Iron Boy", designed on a THE SPENCER ARMS CO. letterhead 1886 cir., depicts a young warrior mounted on his Iron Gray war pony, rifle in hand, on the attack.  Surrounded by a circle of blue he is brave & his acts are holy.  A small red outline, meaning the blood of the people, denotes his great feat is done on behalf of his people.

Below Iron boy is a long horizontal rectangle filled with a colorful geometric designs known as a parfleche design. A parfleche design was normally an abstract, non-figurative pattern, painted or drawn on rawhide carrying boxes/envelops by females. This design signifies Mother Earth.

"The Spencer repeating rifle was a manually operated lever-action, seven shot repeating rifle produced in the United States by three manufacturers between 1860 and 1869. Designed by Christopher Spencer, it was fed with cartridges from a tube magazine in the rifle's buttstock.  The Spencer repeating rifle was adopted by the Union Army, especially by the cavalry, during the American Civil War, but did not replace the standard issue muzzle-loading rifled muskets in use at the time."  Spencer Repeating Rifle- History.