Kindly pardon my intrusion here, but would not the "RB 11/46" mean "Rebuilt by Long Branch November, 1946". To me, that's the only explanation for the conjoined LB in the second punch; it is clearly not a simple "B", nor are the strikes consistent. Seems perfect for a rebuild mark, as has been pointed out previously.
Too bad more things aren't marked properly.... even if it does mess up the pristine "purity" of an "original" rifle. These things had long Service careers and underwent rebuilds and Views during those careers.
Many of the recently-released rifles are in FAR better condition than the pelters released in the 1950s and early 1960s. Reason is that they released the beat-up ones first, kept the best ones in war reserve...... and kept them up to date and in good condition for half a century or more.... and only THEN released them, the ones that weren't shredded.
I shall now run away and hide in the sock closet, having contributed nothing to this thread.
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Those are my thoughts on the "RB/date" marking. Also, this jives with the "46" stamp on the barrel. As you know, the barrel is the heart of it. You can overlook an "ugly Betty" No4 as long as the barrel is sound and tight and the lug recesses in the receiver aren't unduly worn.
I have an ex-Belgique LB44 that looked like a tomato stake on the outside and cost me $75 about 12 yrs ago. The barrel is great, and once the grease and crud were cleaned away and the wood and some non-LB parts were replaced, it looked like new.
I'm thinking this one may just work up to be a thing of beauty and a joy to behold once I get down to the metal and fit up some nice LB wood and other LB parts. I'm working away for the next while and will be interested to strip and clean the bolt and cocking piece to see what maker's ID I find on them.




















































