Thank you for your observations. A magnet detected three finishing nails used as support as you pointed out. I will try to stabilize the two cracks. The rifle came with a 1901 carbine sight, cleaning kit, oiler and sling. It has a 1903 Springfield front sight. It would be nice to know if it was an original nra, dcm carbine. Maybe someday someone will figure out a way to determine this. In the meantime I hope to enjoy my new piece of history.   
                 Thanks again, kc

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