Hi!
Sorry, my wife says my previous reply was "rude." I was just having a chuckle.
Some questions to help narrow things down: Answer all you can.
1) Where is the safety and how does it work?
2) Can you see an "external" extractor claw that rides along beside the bolt?
3) How does the bolt release work? (Meaning what do you do to be able to remove the bolt from the rifle completely?)
4) What is the stock made of and how is it shaped? Is there a "hump" along the top of the stock where your cheek rests? What does the forward end of the fore-arm look like?
5) What cartridge is it chambered for?
6) Is there a metal plate on the bottom of the stock just in front of the trigger guard, or is it all wood from the trigger guard forward? (This would be the floorplate of the magazine.) If there is a plate, is it hinged so you can open it? If so, how do you release it?
7) Is there, by chance, a removable magazine box?
8) Look at the bolt handle. Is it straight? Is it bent downwards? Is it bent down and back a bit? Does it have a ball-shaped end? Does the end have flat facets on it or is it a sphere, or a flattened blade shape, or???
9) What are the sights like?
And anything else you can think of.
Few of these items will tell what rifle it is without further info, and most of them could have been changed over the years, but it is a start.
Keep the info coming!
-Sam
EDIT: Ok, pics now, COOL! Still, answer the questions that aren't obvious from the pics, or use the question list as suggestions for taking more detailed pics.