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Offset Printing This is a variation of the lithograph process in whichthe design is transferred from the printing roller to arubber roller and then, "offset" to the paper. It is aparticularly rapid process and one that has seen consider-able improvement in the last generation. It was used bythe United States Government in 1918 for the productionof one-cent, two-cent and three-cent stamps to relievethe Bureau of Engraving and Printing of the enormousamount of work the war had forced upon it. Thesestamps are really identified by their absolutely flat and"messy" appearance. They furnish collectors with ahealthy group of varieties for study and are one of themost interesting interludes of our postal history. |
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