Issued October 7, 2025 International Letter Writing Week First Day of Issue Stamp Maximum Card Hand-stamped and Machine-stamped, 1 card each The postcards were printed using images from the public domain. The back is blank. Will be protected from folding and shipped via regular mail. Instant purchase is welcome. *About combined purchase discounts We will discount the shipping cost for combined purchases of cards. Please contact us via "Request to buy in bulk." We will change the price after approval, so please apply at the regular price first.