Scotts #525 US stamps

#525 - 1918 1¢ no watermark, offset - p 11

1¢ Light green, deep yellow green, blue green, grey green, sage green

Subject: George Washington
Printing Method: Offset
Perforations: 11
Watermark: unwatermarked
Scott #: 525
Issued: December 15th, 1918

Value

Used
40¢ - 80¢
No postmark with gum (MH)
$1
Full perfect gum, no postmark
no trace of stamp hinge mark (MNH)
$2.50 - $5.50

Plate Numbers

#525 was issued with the following plate #'s

Number only
400 subject sheets
9095-96
9242, 47-50, 57-61, 66-67, 83-84, 86, 90-91
9306-08, 18, 20, 21-22, 28, 99
9402-03, 86-89, 96-99
9508-11, 15-19, 21-27, 39-40, 41, 55-58
9640-41, 43, 61, 62, 72-82, 85, 92, 98-99
9700-02, 09-18, 20-25, 55-56, 63-68, 72-74, 79-82, 87-88, 91-92
9302-12, 17-25, 30, 37-44, 59-61, 70-71, 74, 76, 78, 94-97
9906-07, 09, 16-18, 20, 49-54, 65-69, 73-89, 92, 95-99
10000-03, 05-17, 20-38, 41-45, 49-50, 52-55

1600 subject sheets
9971-93

#525a

Dark Green
#525a
Value as #525

#525c

Horizontal Pair, Imperforate Vertically
#525c
Value $650 - $850 (MH)

#525d

Double Impression
#525d
Value $300 (used)

A change to Offset

The poor quality of the ink that could be obtained at the time wore out the plates quickly. By switching to offset printing the plates lasted longer. The use of offset press would stay in place until the quality of available ink improved, which was expected to happen once world trade had gone back to normality after the disruption of WWI.