https://www.24hourcampfire.com/ubbthreads/ubbthreads.php/galleries/12786341/leather-barkieI don't have the Boone I but I do have the earlier production Leather handled Bark River in the picture.
Comparing a Bark River to an Early Marbles knife I would expect the Barkie to have better steel, better convex blade geometry, a better sheath and better workmanship.
I have quite a few Bark RIver Knives because I like the steel, convex edges and feel in hand. Their workmanship is above a normal production blade but it's not as good as most full custom knives. I'm not saying it's bad per se just not at the level of say a Chris Reeves or full custom knife, maybe 6-7 out of 10. Some of their sheaths are even nicer.
All in all they aren't cheap but likely a far superior knife overall to an original Marbles and should last at least most of the rest of your life. :-)
.............................dj
BTW how do I get an image from the gallery to post directly? Doesn't seem to be working right for me.......