NAN,At the Bladeshow,I handled a few knives (slipjoints)of Jeff Claiborne
The knives I handled were 52100 & fabulous,really nicely crafted.
I have his brochure,and yes he does do a trapper
Carbon steels he uses:
52100,5160,1095,1075,O1,L6 & also D-2 ,Stellite,6K & Damascus
his contact is
jeff@claiborneknives.com tel 1 -317 - 736 - 7443
He was very nice to talk to,and informative as to what he made
If a carbon steel blade slipjoint is what you are after,I would recommend him as a knifemaker to look into
-Vince