A QSL card, the postcard ham radio operators trade to confirm they’ve made contact, made from a punch card with the sender’s call sign, YU3TJA, punched out in letters. It confirms a contact with the station VP2MSA on October 29, 1977, at 13:33 GMT on 28 MHz, with a signal report of 59. “PSE QSL TNX” asks for a card in return (“please QSL, thanks”), and “73” is radio shorthand for best regards. YU3 was the call sign prefix for Slovenia, then part of Yugoslavia.
