A few years ago I picked up a mint Mauser from felinevet and its been sat in my collection unused, then recently I got the chance to buy a BNIB Mauser so I bought it thinking I could use the mint one and keep the BNIB in my collection

I've only just noticed the BNIB one has the small file/match striker plate on the saw while the mint one I bought a few years ago doesn't
Can any one give me any info on this as I've looked online and all the Mauser's I've seen don't have the file/match striker on the saw.
Thanks