Hi Terry,
have some discussions in german ham forums about label printing. Most of the
guys said that labels, wich printed on thermolytic base, are unreadable after
a year or 2. That labels which printed by ink are unreadable after 2-5 years and
that the almost best way is a laser printer.
I don´t beleave that and i don´t know you have this labels checked out for a long
live. Maybe some other guy´s her which have received labels on their QSL cards.
Think this would be an interesting discussion ..

73´s .. Juergen ... ALT-512 SDR (10W) , 50 m random wire at SG-211 autotuner, 2 x Xiegu G90 (20W HF TRX) one as portable Radio. Also TS-790E (40 W) for VHF/UHF with X-50 vertical and Duoband 4-Element LPDA.