If it was me, I'd put them up and keep them clean and safe. They are a great piece to somebodies collection. I wouldn't fire them because they can break (spring malfunction, trigger mess up, firing pin bend, et cetera). The value is higher as long as they fire n work properly, in case I did ever decide to trade them or sell em off. Then there is the fact your inherited these fire arms, from who I don't know. But in my case I only have a few family members who are into firearms like me, so for them to leave them to me would be a great sentimental value.
and the they seem to have good years on them, anything under 1970 is a collection piece in my opinion. Now if you want something to just tinker around with as you stated, I would pick up a little .22 rifle, you can find some around 100 or less. You can even buy thing to tactical them out, and make them look pretty spoofy.
And if you want something with more power than a .22, but still a little tinker rifle, you can get a Mosin Nagant for around 100$. Shoots a 7.62x54R.
You have plenty of options for little tinker rifles, even pretty low priced handguns. So there are plenty of options out there. I would buy a cheap tinker weapon before I shot them collection pieces.
GREAT Weapons as I said before, could you post some pictures? I'd love to take a look at them.
America will never be destroyed from the outside. If we falter and lose our freedoms, it will be because we destroyed ourselves. - AL