| Washington Head: Denomination in Numerals: 1¢: Perf 10 coils |
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Denomination |
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Perf 10 Horizontally Vertical or Endwise Coil |
Perf 10 Vertically Horizontal or Sidewise Coil |
Printing Method and Watermark Check - You must first determine if the stamp was printed using the flat plate or rotary press method., no offset stamps were issued perf 10. If the 1¢ perf 10 coil is flat plate it does not need to be checked for watermark, it is single-line watermarked. However, if it is rotary press, you must determine if it has a watermark.
Coil Type Printing Method Watermark Size of Frame Scott Number Perf 10 horizontally Flat Plate Single-line 18.5 x 22 mm 441 Perf 10 vertically Flat Plate Single-line 18.5 x 22 mm 443 Perf 10 horizontally Rotary Single-line at least 22.5 mm high (taller) 448 Perf 10 vertically Rotary Single-line at least 19.25 mm wide (wider) 452 Perf 10 horizontally Rotary none at least 22.5 mm high (taller) 486 Perf 10 vertically Rotary none at least 19.25 mm wide (wider) 490
Caution
Scott 443 and 448, are sometimes faked. Since the cost of certification outweighs the value of the stamp, the forger stands an excellent chance of not being found out. We would recommend purchasing these stamps from reputable sellers only.
Scott 443 can be faked by trimming the common Scott 424 or adding perforations to the imperforate Scott 408.
Scott 448, the perf 10 rotary press coil, could possibly be manufactured from a Scott 543 by trimming the left and right margins, since the 543 is quite common and often well-centered with large margins, although the fake would not have a watermark. Be sure your 448 has a watermark!