These articles were written by the exhibitor and serve as the research base for the 10c Coil exhibit. All are downloadable.
Searching for the 10c Coil of the 1938 Presidential Series
This article appeared in the November 2020 issue of The United States Specialist.It explores reasons for the scarcity of the stamp and its uses. The article also contains a table of all possible uses for the 10c value of the Prexies.
Production Characteristics of the Prexie Coils
A lengthy monograph published as part of The Prexie Era book published by the American Philatelic Association. The focus of the article is on the production differences of the coil format from the regular issue of the Prexies. There is an overview of the Stickney Rotary Press, production quantities of all the coil values and a through review of printing anomalies that occurred during coil production.
Elements of Prexie Coil Postal History
This monograph also appeared in The Prexie Era. The article explores usages of the coil stamps within the context of all Prexie formats. It explores the heretofore unsuspected scarcity by collectors of usages of many coil values.
The 10c Coil Stamp From the Presidential Series of 1938 