1st question: All parts have matching serial number (DG556), but the reciever, the barrel and rear sight also have modern markings (MADE IN RUSSIA) painted on. Can anyone explain me more about these markings? Was it reissued by Russian federation, or are those only export markings? (photos).
![Image](http://s21.postimg.org/6lj67bsxf/2015_01_22_15_18_00.jpg)
![Image](http://s10.postimg.org/5yjkorr4l/2015_01_22_16_59_27.jpg)
2nd question: It's made by Izhevsk armory in 1943, but it's missing the scope serial number on the left side of the barrel (all though it has barely visible serial number on the far bottom of the barrel)? Does that mean, that the barrel in not from original PU sniper rifle?
![Image](http://s30.postimg.org/8ntb8al1p/2015_01_22_16_31_59.jpg)
3rd question: It has a serial number added on the left side of the reciever. I have never seen an example with serial number there. Maybe it was added when reworked?
![Image](http://s8.postimg.org/lfvevlr8x/2015_01_22_15_18_13.jpg)
4th question: Is the scope ww2, cold war or modern production?
![Image](http://s24.postimg.org/3wl90ih8x/scope.jpg)
Thank you for your answers!