QSL from KKOL 1300kHz

I received a QSL card from KKOL 1300kHz, Seatle. I reported my reception to this station at the beginning of December. I was not sure that KKOL has its own card or letter as QSL, so I enclosed a PFC, which is a card  desigined by myself, with my report. This is the way I usually do when sending reports because it is not easy to get QSL from stations in US.

An engineer of KKLO kindly returned my card with his sign.