Thanks so much for your response and information.  Yes, I'm not a Krag expert at all, but in all my 40 year of collecting, have never seen this before.  I attached two more pics that I hope help.  Rear sight is C marked.  I think the only non-stock item would be the sling swivels.  Stock was cleaned a bit but I can live with it.  Bore is awesome.
Thanks again,
Mark

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