Dog's Head questions

[Ridgegrass]

Found this yesterday.
-Is it a 2291?
-The liners appear to be nickel silver ? Price says the earlier ones were "iron" and brass was later, doesn't mention nickel silver. ??
-Can it be dated with a "KA BAR" over "Registered U.S.Pat. Office"" stamp on the mark side? Levine and Price don't mention this mark ? (I have two more with that mark).


Thanks. J.O'.

[treefarmer]

Don't know much of the history but I believe you have identified the liners properly as NS.
Treefarmer

[Gunsil]

JO, i have never seen a doggie with iron liners. Most of mine have brass liners and nickel bolsters. Need a time machine to find out why or when the nickel liners were used, there is no literature I have seen showing the changes.

[Ridgegrass]

Thanks Gene. Any relationship of the "Reg. U.S. Patent" mark to a time period? J.O'.

[stockman]

KA-BAR / REG. U.S. PAT. OFF. I don’t know if this is the stamp in the OP

[Ridgegrass]

That's the one. Thanks a bunch, Stockman. J.O'.

[stockman]

Nice knife. Harold