I'm seeking some advice please.

I'm in the process of making a frame/ shadow box to display some military paraphernalia, including medals/ photographs and other items, similar to the one below that I made several years ago. This one will be much larger,
around 700 x 600mm.

I'm still considering the best ways to mount these items to the back board, which will be covered in a layer of felt. The belt at the base of the photo is part of what needs to be mounted.

Has anyone built something like this and, if so, what did you use as backing board(s) and how did you mount the items ?

Gomez

Frame.jpg