These two were the 61 model carbines, and they were asking $899.99 so just under a grand after taxes. Both were in great condition and come from same owner/collection
If they're $900 in great shape I would call that fair, and I'd probably be a buyer. The biggest problem I've seen is many of them are totally clapped out/ beat up/ modified and people are still trying to get $1000+ I would say only about 1/4 of the ones I see are actually in great condition, and the ones in great condition seem to always have a $1200-$1500 price tag on them. I don't know if people are actually buying them at these prices, but maybe some folks are.
