.38 Short RF headstamp questions (Edit: American Metallic Cartridge Co. 1891-1898)


The mark appears to to show a raised ‘A.’ It’s not particularly clear, or pronounced and the base is somewhat concave.

Is this a manufacturing anomaly; or a manufacturers headstamp?

If it is a headstamp; could it be:

(i) Winchester Repeating Arms Co.
(ii) Federal Cartridge Corporation, Minneapolis; possibly in conjunction with American Cartridge Company, Kansas City, MO.

Are these tooling marks?

Any thoughts would be appreciated.


The raised A is by the American Metallic Cartridge Co.

Many thanks Pete.

I’ve come up with 1891-1897 (Munición) for the date?


Barber notes 1891 to 1898