3¢ Washington Head
Perf 11
Flat Plate Type I
Flat Plate Type II
Offset Type III
Offset Type IV
Method of Printing - To make it easy on yourself, once you have determined that the stamp is perf 11, next determine the method of printing, either the flat plate or the offset method. The perf 11, 3¢ Washington was not printed using the rotary press method.
