Found an expensive camera and accessories here in the office that has been stashed here for at least ten years

A number of years ago we had a CEO and CFO who extravagantly spent company money on personal trips, items, etc.

This went on for a while and they were eventually pushed out.

We are now two CEOs later and that is long past, like 2012.

Anyway, someone here asked if we had something and I went digging around the office and found a never-used Leica camera with a custom bag, flash, extra lens and some other accessories.

I believe the camera is from 2011, obviously bought by one of those two from way back then and stashed here.

I told my boss that while looking for what she asked me to look for I found an old digital camera and I am going to keep it.

So, question is, should I disclose that it's a super expensive camera or just follow the finders keepers rule of thumb considering it's been in some storage cabinet for at least 10 years?