Do you think my 41 has been re-blued?

[Sky Zero]

Hey guys

I asked maybe 4 years ago about this specific luger and I've only now gotten around to taking natural shots of it. I'm concerned that my 41 byf may have had some alterations in the past; I bought it on gunbroker and discovered shortly after that the firing pin, loaded, and safety piece with the serial number has been re-blued as well as the seller carving 'BYF *serial number' into the grips. I got this back when I was a noob (and I still am, pretty much) and didn't know better. Barre. doesn't align with the frame, either but I'm in contact with G.T. and we're going to attempt to figure that out, and by "we" I mean him :P

Looking for expert advice on whether or not you think it's original or if the side plate is a remake. I see some number on the inside of the side plate but I'm unsure what it's supposed to be for this year and make. Also, does the serial number on the sidse plate look legit? I have a sneaking suspicion that it's not original due to the font. Thanks! Oh, and I jst agreed to a price with another user on my first imperial