Christopher Gadsden, who was a delegate to the Second Continental Congress presented a flag to the Provincial Congress of S. Carolina congress describes the flag as "an elegant standard, such as is said to be used by the commander-in-chief of the American Navy: being a yellow field with a lively representation of a rattlesnake in the middle, in the attitude of going to strike, and these words underneath, DON'T TREAD ON ME!"  Patch size is 3 1/8" x 2"