There was a box of brass shelled Remington on the GunsInternational auction site, no date, that sold for $50. It appears that the brass case makes it M19 ammo. Usually 10 round boxes. Supposedly worth a lot less than $100 though.
It seems the paper shell stuff dates from early U.S. entry into W.W. I. Mind you, there was also paper shell training ammo.
Long discussion here with good pictures about 'em. http://www.usmilitariaforum.com/foru...un-ammunition/
I'm thinking it might be a good idea to pop over to the Cartridge Collector's forum and ask there.
http://cartridgecollectors.org/
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