AN EXTREMELY RARE COMBINATION OF STAMPS AND UNDOUBTEDLY UNIQUE ON A PATRIOTIC, CAPTURED OR OTHERWISE.
Illustrated on the cover of May-June 1987 issue of The Confederate Philatelist and the subject of an article giving possible explanations for the due marking. The article, by Blake Myers, illustrates a letter from Dietz who explained that the patriotic was probably picked up on the battlefield. The soldier put on the 5c stamp, and, after being told that the rate was 10c, placed the 10c stamp on the cover in overpayment due to a shortage of 5c stamps.
Ex Stonewall, Myers