I dont do much with paper currency, but recently put together 2 sets. The first is a Philipeans WW2 set with Japan Occupation Currency and Guerilla notes. I added the loose guerilla note after the picture of the frame. The second set is a group of WW2 Japan Military and occupation currency. (Fench Indo China, Mainland puppet banks and Hong Kong). Even 1 war bond. All notes were put in individual plastic protectors before being put in between the 2 paynes of glass.
Let's try Philippines Nice display. What's holding them ? Are they just sandwiched between the front and rear glass panes in the frame ?
Yes they are between two glass paynes. Both sets i was able to obtain fairly cheap with a small amount of time