Finland (Zone 15):   I always enjoy working my amateur counterpart in another country.  I heard Tim - OH3DF calling CQ one morning in March 2011 on 20M SSB and gave him a call.  I saw in my log that I had worked Tim back in February 1979 on 10M SSB in the ARRL DX contest and did not have his QSL.  I collect '3DF' QSLs so we exchanged QSLs via direct mail.