Looks like the gunsmith/engraver removed the markings and ser# on the original rifle during the sporterizing process.
The current ser# looks like a later hand stamped addition. It doesn't fit the sequence of either the S/C or R/A 03-A3 production.
Maybe the gun was a gunsmithing trade school project and the re-addition of a serial number was at the stern suggestion of the course instructor.
No idea on a value. It does have that late 60's style to it with the inlays, stock styling, jeweling, ect.
The rear sight looks way over to the right,,but that may just be the pic. If it is and that's where it needs to be to hit center,,check the front sight to see if it's off kilter,,or a bent bbl or really bad stock forend bedding pressure.
Check the caliber & the headspace. Clean the bore, shine up the silver inlayed deer head, take it out and have fun with it.