3" 23 Cal Landing Gun case manufacturer.

[Falcon]

I found a 3" 23 Cal Landing Gun case (76.2 x 233R) in an antique shop this morning. Even though I don't usually collect US Artillery cases, I bought it because I'd never seen one before.

The headstamp reads:

A.& J.M.A.MFG.CO.
-----7-42

---3" MARK 2
----23 CAL.
-----L.N.P.
--U[Anchor]S

I have a few questions about the markings:

1) Who manufactured this case?
2) I take it "7-42" is "Lot 7 of 1942", is this correct?.
3) What does "L.N.P." stand for?

Thanks for any info

 

[Falcon]

Any ideas?

 

[jozefb2009]

Hello,

A.& J.M.A.MFG.CO. stands for
Albert and J.M. Anderson Manufacturing Company

Regards,

Jf

 

[Falcon]

Thanks. great info.

From a google search, I have found that this company was located in Boston MA.