That M10 would be a Marlin M101. I can't tell by my book if it was introduced in 1951 or discontinued in 1951. Either way, it appears to be a really short run rifle. That makes it a keeper.
I can't tell by your picture if the forend wood is beavertailed. It was supposed to be.
In any case, beautiful rifle. And I think a great one to start kids on.
My son loved his Marlin auto. I got tired of loading clips. So I gave him my Winchester M67 single shot. What do you know! He got better, faster. It slows them down and they learn marksmanship.
That's the kind of rifle that I am always looking for.