Split bolster liner lock on Cattaraugus Toothpicl

[coinshooter]

A G Russell produced Cattaraugus knives for the Knife Collectors Club. The tooth picks
(FH-1 [4 5/8 closed] and CM-12 [3 closed]) had a split bolster liner lock.

1 Does anyone know of any other knives produced with this type liner lock?

2 I have seen the larger version in brown bone, black mother of pearl and mother
of pearl and the smaller version in brown bone only. Does anyone know of other
handle materials used?

[RobesonsRme.com]

I am not familiar with A.G. Russell's version, but Robeson manufactured several jack patterns with a bolster lock mechanism. They made two different sized large regular jacks, a toothpick, and a fish jack with scaler on the back of the blade, and a cap-lifter next to the tang. I've seen the regular jacks handled in bone and Butter & Molasses celluloid. Every other pattern, I've only seen with bone. Doesn't mean they didn't use the celluloid on them, though.
These knives only came with steel liners. The liner on the side of the knife with the lock was spring tempered to close to the center of the knife when opened, engaging the tang and locking the knife open. One had to press it back to the side to close the knife.
Here is a close-up of the locking mechanism, and the larger of the regular jacks. The knife is 5" long. This particular knife is a Paxton and Gallagher, made by Robeson. I do not own this knife, but some very lucky Ebay bidder does.

[coinshooter]

Thanks for the info. An unlikely coincidence in that one appeared on ebay at the same time. Not as nice as yours tho. I've attached a picture of a Russell Cattaraugus FH-1 and CM-12 that Mike Hoover rehandled in gold tigereye for me and a close up of the split bolster lock