Bibliography

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Original, conceptual artwork by Harry Wysocki for a Christmas holiday block of four featuring regional celebrations that was never issued. Box 5.

Much information technical and background information on Carl T. Herrman’s issued stamps may be found in the Linn’s U.S. Stamp Yearbooks, edited by George Amick and published annually from 1983 to 2010. The National Postal Museum Library possesses a complete set.