It’s fine, and original. The main blade shouldn’t have a stamp on the back unless it’s an older Elinox (or very rare Fischer) in which case the victorinox marking would be on the back. Or if you can also see a dated blade, assumed to be leftover from soldier production, but that’s less common than just blank as well. The cap lifter is the slightly older, unpolished kind. But new enough it appears to no longer have the sharpened inner edge. The electricians blade looks fine, and looks period correct. The older one often had the tang grind transition go out to the nail nick like yours. Newer ones are typically ground down closer to the pivot. (See attached pic for what I mean). The brass liner was phased out starting in 85, though they still show up for a few years after. So yours was probably made between 85 and 99. They switched to the new cross after that.
Fantastic info GTMB - I think you need to take over as chief Wiki editor!!!