HERE, QSL CARDS ARE SHOWING KP4TF'S 50 YRS ON THE AIR(QSL ONLY, NOT THE OPERATORS)UPPER LEFT YOU CANS SEE(1954)THE FIRST QSL FOR KP4TF(TIRED FOX)NAME WAS BRAD CARTBRIGHT.I WASN'T BORN YET WHEN THIS FELLOW HAM WAS HOLDING THIS CALLSIGN.AFTER YRS. GOT MY ADVANCED TICKET,DECIDED TO CHANGE MY CALLSIGN-ISSUED THEN-KP4TF.SINCE THEN PROUDLY TO HAVE THAT CALLSIGN.ONCE A WHILE "OLD TIMERS" ASK ME IF I'M THE SAME FELLOW FROM THE 50'S HI HI.AND LOWER RIGHT CORNERIS MY NEWEST QSL CARD(ART. BY MY SON, EDDIE SOLTREN JR FROM AGUADILLA P.R.).VERY PROUD OF MAY CALLSIGN.THATS THE STORY OF 50 YRS. OF KP4(TIRED FOX).