2024 ISGC Auction Scans Member David Lindwall's article got Guatemala? was published in the March 2019 issue of The American Philatelist. APS members may read the article online here. _____________________________________ The March/April 2019 issue of Topical Time, the journal of the American Topical Association, contains two articles on Mayan topics on stamps. _____________________________________
Hello, has anyone got any info on marking, types and periods of use of Judicial/Official mail handstamps. Or know of any books or online exhibits? Thank you.