top of page

U.S. 24c Purple 1870 - 1875

A progress report on a Philatelic Enigma. Written and presented by John Barwis and Harry Brittain at the 2017 IAP Symposium in London.

The U.S. 24¢ Purple stamp has been a philatelic mystery for 122 years. As explained in the articles below, these stamps are particularly difficult to identify due to the use of different inks, an overlap in distribution, and a lack of printing sources in postal records.

Please use the two links below to enjoy these articles.

2017 IAP Symposium in London

Symposium Proceedings

Think you have one of these rare stamps in your collection? Get in touch with us today!

166 views0 comments

Recent Posts

See All
bottom of page