ASW stands for Actual Silver Weight
which is the amount of pure silver you would have (in Troy Ounces)
if you melted the coin and separated the metals.
Pure silver is generally too soft for producing coins.
Therefore, silver is usually mixed with other metals (usually copper)
to give it strength while preserving the appearance of the precious metal.
The precious metal value of a coin is referred to as its Bullion Value (BV).
Current value of silver per Troy Ounce can be found at such sites as
Multiply value per ounce by ASW to get the current BV of the coin in U.S. dollars.
Conversion rates from US dollars to other currencies can be found at XE.com.
Special thanks to Vic Krysko, Mike Berneking and Marc Kuppens for entering ASWs for WorldCoinGallery!