That was 70th anniversary, not 60th. And that was last year, now as a model, they are at 71, soon to be 72yo. Production began in 1946. I sold my 1976 pair just this morning. Not sure what I'm replacing them with, yet. I didn't have good corners because of an extended fireplace hearth holding me off one corner. (Have a table saw, but now lack the strength to use it.) Really enjoyed the Khorns even though the room is a little small with a bad corner.
So many speakers, so little time. My next pair of speakers need to fit my room better.
Congrats on acquiring yours - the room seems fairly big in the pic. Bet they sound great in there. Nicely done on the panels.