Much better general condition to the ones we used to see. We were still getting single screw hole grips coming through the Ordnance system in the 60's. It was a bit of a menace too because you'd get two and one screw grips that wouldn't match! The true problem with the one screw grips was that if you used the bayonet as a knife (and if it looks like a knife, guess what the crunchies will use it as?) the grips would twist/rotate about the screw and split along the top and bottom edges.
While the pattern of the grips changed, the part number didn't so far as we could make out!