Answer by
LeheckaG (1826)
Yes, any currency's-coins are usually collectible.
At worst, they are usually at-least-worth face-value,
which is not a problem unless inflation-rates are relatively-high.
If a country's-currency goes under
(like the Confederate-states' in the U.S.-Civil-war, or Axis-powers' in World-War-II, ...),
then that currency no longer has a face-value,
but that currency is usually more-collectible over-time.
Coins have an intrinstic (base-metal) value.