A couple things my friend.
The maker mark looks funky but I suspect it`s your resizer program.
The picture of the upper crossguard shows less than ideal fits between the wood and the crossguard. It`s been apart for sure, if ever given a choice, go for a virgin piece.
Also the nut appears to be a different material than the crossguard, normally the matterial are the same. Ie a nickel nut with a nickel crossguard and plated nut with plated crossguards.
Hope that helps some.

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