Trapdoor SRS request

[LTPayton88]

I am looking to see if anything comes up on my 1891 manufactured Springfield Trapdoor. Serial number is 530275. I have also attached a picture of a number that is on the stock. im assuming it a rack number or unit number but I don't know where to look for a unit to tie it too. Does anyone have any info on those numbers? Thank you in advance. It is the Top Rifle in the picture.

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