'Madmatt' - Welcome to the KCA Forum.

That is a pretty nice model 1898 Krag rifle that you added to your collection.

I suspect the 'brass disc' on your stock was an inventory number that a collector put on the rifle to identify it in his 'collection catalog'.

Your serial number, 199XXX (?), would indicate likely manufacture around April to May, 1899. If you wish to give the whole number, a KCA member will check if it is documented in Springfield Research Services (SRS) Data.

The wood grain in your stock appears to be Italian walnut. Due to a shortage of cured black walnut blanks in 1899, the U.S. Ordnance Department purchased Italian walnut blanks from a New York City lumber merchant. These stocks usually have Stock 'cartouche-date' of 1899, 1900, or 1901. The initials  on your cartouche stamp would be "J.S.A.", in fancy script, over an acceptance date - (Joseph Sumner Adams - assembly shop foreman).

The Italian walnut stocks are lighter in color and have a 'yellowish appearance' in contrast to the darker 'reddish brown' American black walnut stocks.

The Italian stocks were sometimes darkened (maybe locally) with stain to better match a unit's other rifles. The Italian walnut stocks will be seen in a variety of tones.

Springfield Armory stained the American Black walnut stocks with 'logwood' which imparted a reddish-brown color.

Attached: #1. Photo of Madmatt's stock showing European grain. 2.&3. Photos of a stock, that I have, showing stained and unstained areas, as well as, 'cartouche'.

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