BH7CNC_Jack Previously with @YofoaStudio While organizing cards in Area 7, I identified older cards based on my understanding of printing techniques and paper quality. Although not ancient QSL cards, they are still quite old. The following examples are shown: Offset printing process This set of castle-themed cards should be a large print that can be cut out yourself. Each landscape has a number (not all are included, so those with obsessive tendencies should be careful), which adds to the collecting fun. It is identified as a three-color offset printing process. Back: Single-color printing I also found another card with the same craftsmanship: Letterpress printing The characters on this card may have been printed using letterpress, but the overall appearance suggests that it could also be a result of line-based printing. These are all typical examples of relief printing using letterpress techniques. The designs feature a recessed or indented effect. Here's also an example of a QSL card I received using the same technique: Early computer phototypesetting process The key features are its relatively large diameter, with a concentric pattern, but also a matrix-like web-like structure that is also distinctive. Here's also an example of a QSL card I received using the same technique: This also essentially shows the progress of printing technology, much like how we look back on the transition from vacuum tubes to highly integrated circuits – it's fascinating (and a bit silly).
SuoYuC YofoaStudio ? I'm running FT8 and SSB/CW at a ratio of 6:1, and I'm aiming for 7000 QSOs soon.
YofoaStudio SuoYuC Have you checked with the card office to see if your card is still valid? Xiao Zizi especially likes to send FT8 QSL cards.
SuoYuC YofoaStudio In reality, I had to change my location, and I couldn't go all the way to the regional headquarters just for a few cards.
YofoaStudio SuoYuC Doesn't the list include contact information? Then, someone in Crac sent an email asking for help, but they didn't ask for any money.
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