May thanks to SWLing Post contributor, Dan Srebnick, who writes:

Unexpected SWBC QSL in the mail today [see above], the first in years.  World Music Radio 5815 kHz (7 kw) for a May 2004 report! Interestingly, mailed from Andorra where the EDXC meeting was just held.

Wow! A 5,588 day turn-around! As they say, “better late than never!” Thank you for sharing, Dan.