In 1972, I took the loose pin all the way out, broke a couple tooth picks a little short of the length of the hole and put them in there with a little Elmer's glue. Then I put the pin back in and let it dry. It's been fine ever since. It's the 1971 Les Paul Deluxe on the left.
Bought my Gibson L5-C at Manny's in 1975. A great store that had everything. You could gawk for hours just at the personalized autographed pictures from all the famous artists and bands. First thing Sam Ash did was take those pictures down when they bought it.