These are several things that create value for the money:
- Durability
It should be made with materials that could sustain themselves for a long period of time.
- Identifiability
Money should be easily recognized by the people who use it
- Portable
Money should be in a size and shape that are easy to be carried around by people.
- Usefulness
Money should have trading powers that people could use to obtain another goods or services.
If you're talking about the Spanish-American war, I think sometime between 1895 and 1898, Cuba and the Philippine Islands revolted against Spain
