I'd like to display some coins in a shadow box hung on the wall. Can anyone provide tips on ways to mount the coins to the backing without damaging them?
If they are magnetic, a cheap magnet sheet, or individual magnets if only 1 or few coins will do.
Just add the sheet on the back of any picture frame of your choice... add another layer of whatever background you want (White sheet, Black, etc) just put the coin nicely in your desired location and placed into the frame with glass or without glass... many choices to pick!!!
If you use the individual magnets, then just make sure you glue them into a hard surface that can withstand the weight of the magnet(s) and coin(s), and cover with your prefered material to hide...