2007 41¢ American Flag
Issue Date: August 15, 2007
City: Washington, DC
Printed By: Banknote Corporation of America for Sennett Security Products
Printing Method: Lithographed
Perforations: Serpentine die 11 ¼ x 10 ¾
U.S. #4191 can be distinguished from its look-alikes by the microprinting on the left side of the flag pole and its perforations.