Hi everyone.
I purchased a couple of Winchester 1897 model, both takedown.
One of them is an early model (so I was told), serial number C59665, and needs some restoration to the ejector device that appear quite different from other later model.
Here are some pics to explain better the thing.

You can see the differences both outside and inside from the older on the left and the later model on the right that is the only type I ever see till now.
I ask if someone knows what is needed to bring it to the factory state.
Thanks in advance for any help.