Picked up my Underwood today from classicfirearms.com. My matching typewriter should be in early next week:) Here is the carbine as I took it out of the box. I'll tear it down and clean it up hopefully this weekend or next week, and post more pics.
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NPM stock, can just make out the stamp, and Trimble in the sling recess.
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Barrel stamp is faint, but can make out Underwood under a bright light, and an ordnance bomb stamped off-center.
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Faint arsenal refurbish stamp in front of the wrist? SAA?