A post card, SURE! But a REAL QSL card (IMHO) indicates a REAL tw0 way contact. A SWL card, IF designated as such, may be acceptable. Our club has many "visited" the station, but not operated there. Such a card may be what you request. (I applause the ol' timers) I got interested in the first place.and am thankful for their efforts. It seems there is still an active SWL in existence, which is GOOD. That is where most of us "old timers" got a start, listening to BBC, Deuschelle Welle,: and others.