The Babe Ruth baseball card market is still ON FIRE!!!

Check out this rare 1933 Goudey #149 card-- signed by The Bambino himself -- that just sold for $761,100 at auction Sunday night ... more than DOUBLE the highest price ever fetched for this particular card!!!

The item was part of the legendary "Uncle Jimmy" collection -- an insane collection of ultra-rare cards that Jimmy Micioni had stashed away at his home in New Jersey since he was a kid.