Changeable display of smaller prints ?

[Clueless]

To display 8 5/7 prints, or 4/6 prints at a time in a collection that will be set upright on a tall table: They would be changed every two weeks. Dry mounting is out. Now they are set-upright in contact with the glass cover that looks good because of the very diffuse lighting, but as glass and emulsion in contact is normally a no-no -I don't know if it will be problematic when they are disassembled.