#350 - 1910 4ยข Double line USPS watermark, perf 12 Horizontally
See below for details
Basic Info
4¢ orange brown, brown
Subject: George Washington
Printing Method: Flat Plate
Perforations: Imperforate
Watermark: double line USPS (see below)
Scott #: 350
Quantity Issued: 283,000
Issued: August 15th, 1910
Value
Used
$200 - $250
No postmark with gum (MH)
$150 - $200
Full perfect gum, no postmark
no trace of stamp hinge mark (MNH)
$350 - $500
Plate Numbers
The plate numbers on the sides having been cut off and those on the top and bottom being covered up by the paste up,
Line pairs
A solid line between two stamps, seen along the perforations in the middle, was the guide line used on sheets of stamps. They would be placed between each pane (usually 100) of stamps. They can triple the value of the pair.
Earliest documented use
Earliest documented date of use, March 22nd, 1912
The first coil stamps
It was not until early in 1908 that the Post Office Department issued some coil stamps of the 1902 series for use in vending and stamp affixing machines, but purely as an experiment. They were found to be satisfactory and as the Department realized that a demand existed for this type of stamp it was less than three weeks after the new design had been issued in the ordinary form that it was also available in coil form.
As in the previous issue they were made from the regular 400 subject sheets which were perforated twelve in the horizontal spaces between the stamps and then cut into strips of twenty. The horizontal guide line appeared in the middle of each of these strips, which were pasted together by hand and rolled into coils of 500 and 1,000. These were coiled on one half inch diameter pasteboard cores. A "paste up" or line pair, therefore, occurred every twentieth stamp and are about eight times scarcer than the ordinary pairs.
This type of coil was never as popular among users as the endwise coil.
Double line letters watermark
1908-09 Definitive Double Line USPS Watermark Coil Issues
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