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| Flat Plate Type I | Flat Plate Type II | Offset Type III | Offset Type IV |
| 3¢ Washington Head Perf 11 |
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| 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. |
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