Thanks everyone for your comments, interesting that they may have been intended for green turning. I’ve thought about fitting handles and using them on my lathe, but undecided at present.
Originated from one of my g/f’s tool chests, wrapped in a heavy waxed paper, who was in carpentry trade early century, so imagine these may not have come to him new, I assume there are late 1800s, but I stand to be corrected.
Does any one know if the various Sorby firms were all related to the same family, Issac, Robert, I&H or which order they appeared in?