All About Pocket Knives

I got this knife a while back. I have been trying to find out what year is was made. I have looked through a few different site and can not find it. I found where you compare the "Case" stamp and I do not see it how it is stamped on this one. Any info/help would be great. I added a couple pics. Thank you.

A close up of the mark side tang stamp would make it easy to tell.
That knife appears to be a Case not a Case Classic from what I can see.
If you can't get a good close up of the Tang stamp tell us exactly what is on the tang stamp and in what order and that will narrow it down.

If the mark side is stamped CASE over XX , it was made prior to 1965 . If it is stamped CASE XX over USA it was made in early 1965 (2nd issue / transition) .
Bob

On the tang its self, One side just says "Case" the other side has "5172" Here are the best pics I could get.

Looking at your first picture it looks like it is probably a XX era knife prior to '65.
Open the blade partially and look closely and see if you see the top of any stamp below the Case stamp. There should be something the bolsters sometimes hide part of the stamp because the size and shape of the bolster.

I may see the top outside of the last "X" So if your saying pre 1965, does that make it one of the ones that people collect? I'm not a collecter, and wondering the value. I buy storage sheds at auctions and am always finding knives.

Yes it is collectable. Price wise not a huge amount. If it were Mint condition it would command a much better price.
The value of a knife is only what someone is willing to pay. I won't estimate a guess on yours( I will let someone else help you there). If I owned that knife I would make it a user as that it shows wear and has been used but doesn't appear to have been abused.

Ok thank you I have a bunch, some name brand some Walmart special. Been looking them up. Again Thanks for all your help.

Is there a good place to go look up, on how to clean and polish up the blade and the handle?

Most collectors think that polishing a knife makes it less valuable than leaving it as is. Maybe take some metal polish and hand clean it is all I would do to it.