I've inherited my collection from my father when it contained a variety of international silver coins. Most of coins were of the British Commonwealth coinage that were in and around the two world wars. My Great Grandfather operated a diner at a Train stop in a Canadian prairie town. Military personnel and train crews came in for a quick meal as the train took on water, fuel, and passengers.
Business was good every time the train stopped by.
Silver coins were accepted regardless of country; Australia, United Kingdom, Netherlands, France, Italy and even the odd German.
The Bank didn't accept all the silver, resulting in this collection and my great grandfather took it in stride as doing his part for the War.
!BBH