THIS IS A COLLECTION OF FOUR OLD VINTAGE WHITE MOTHER OF PEARL BUTTER KNIVES.
They are not all the same, and one of them is different than the other three. The one that is different is marked Sterling on the band. It's hard to read, but it looks like the other three are also marked sterling. This would be for the bands only, not the actual knife parts. There is tarnish, discoloration and wear.
Measurements are about 6" long each.