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4¢ Washington Head Perf 8.5 Coil |
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4¢ Washington Head Perf 8.5 Coil |
| Watermark Check - There is no need to check the watermark on this stamp other than for authentification purposes, it must be single-line watermarked and flat plate. |
| Watermark | Scott Number |
| single-line, flat plate< | 395 |
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