Early boker USA handle material?

[pmedic]

I picked up a early boker USA pocket knife and I’m not sure what the handles are made of looks to be bone or some kind of horn. Any help would be great

[edge213]

I picked up a early boker USA pocket knife and I’m not sure what the handles are made of looks to be bone or some kind of horn. Any help would be great 9EAAF86D-4943-481D-8BE9-425F1B7E2D10.jpeg7BBDE22C-C5F9-4B71-B295-AB29D50C5E2F.jpeg025037B1-054A-449F-864F-CE19BDAA5112.jpeg9541C37A-9E11-414B-B249-92AA659CDA6C.jpeg96C627F8-611D-4FD8-A67D-FF5E52A27ABD.jpeg

Looks to be celluloid.

[Dan In MI]

Celluloid was my thought, too. If so, hope it's fairly stable.

[Mumbleypeg]

Celluloid is my opinion also. I’ve never seen bone or horn having a pattern like that. However it is easy enough to determine if its bone - bone has tiny pores (Haversian canals - look it up) that are visible with magnification. Celluloid does not have them. Horn is actually a form of hair, also visible using magnification. A loupe, or magnifying glass, will answer your question. https://www.allaboutpocketknives.com/kn ... 98&t=62145

Ken