I own 3 Marbles knives(2 Fieldcraft, 1 Plainsman). All made in 1998-1999 with 52-100B blades. They all are wicked sharp and hold that edge for a long time.

I’ve purchased some really nice customs in the past made with great blade steel(ATS-34, D2) and I gotta say, I think the 3 marbles I own are better knives. That 52-100 steel is good stuff!
I’d love to find a couple more made with 52-100 steel from the ”Mike Stewart” era in different models. That Loveless pattern has me intrigued.

Leftybolt