As most of the other guys have said.

Take a good look at it and clean it, then assess the barrel and springs. your rifle looks all original and untouched, well worth saving.

I have several of these Argentinian RB's, they are 11.15x58 calibre, the EN on the barrel flat says it's an Army issue. Even what looks like a 'bad' bore will shoot well, cases can be easily made from the .348 Winchester ones, and if you do need action springs, send me a PM as I have a lot of parts, actions, trigger guards with springs and screws, I can set you up with what you need.

It's a good rifle to shoot, more powerful than your average BP RB, plus it has the later rotary extractor. As to your woodwork, try an Oxalic acid solution on the oil stained areas, this will bleach the muck out and a rub with linseed/turps (50/50) mix will restore the color.

Keep us up to date and good luck

Col