Can anyone give me any further information about a Baker foundry that existed circa early 1900s.

We are trying to help a friend identify a hollow barrel brass railroad switch key that has an incredibly tiny stamp of a locomotive on it, apparently a maker's mark, and another collector told him it is "Baker."

Google searches came up with BAKER FOUNDRY & MACHINING in Amesbury Mass. and also a Herbert Baker who apparently operated a foundry in Lucas County Ohio.

That is all the information I was able to dig up. Would anyone be able to offer anything further ?

Thank you in advance.