Is this weird?

So my husband was married before and got divorced about 6 years before we met. We just moved and I was unpacking his clothes when I found his old wedding band in a little box with a bow on it.

Is it weird that he’s still hanging on to it? Or am I just overreacting and it’s nothing?

I just don’t understand why he’d hang on to it after all this time. I don’t have anything from any of my exes, but I wanted some input before talking to him about it (he’s on a business trip right now so I have some time to think it through).

Edit to add: they did not have any children.