Postcard wall display
Does anyone have any clever, simple, archival solutions for hanging a salon style wall of many art postcards? Most of the cards are 4x6ish with some larger. They will each need to have some sort of "sneeze guard" for the public (acrylic/optium). They will also need to be secured on all sides. I would like the postcards to not be pressed against the acrylic so they might need a barrier like silicone release mylar? One idea is to secure them to the wall with something like L-pins. The problem is that it would require 6-8 L-pins to secure them on all sides and that might be too busy. Also strangely enough, sourcing small silver L-pins is quite impossible. They don't seem to be available anywhere. We are toying with magnets and standoffs, but everything seems to fall short. Any ideas welcome!
Couldn't the mylar also be the 'sneeze guard'? Could multiple cards be put on a single board, so fewer pieces to mount? (Can they be put on the board with clear mount corners?)