
1) Archaeological artifact 2) Viking treasure trove
Found on
https://www.crosswordclues.com/clue/hacksilver

Hacksilver, or Hack-silver, is fragments of cut and bent silver items treated as bullion, either for ease of carrying before melting down for re-use, or simply used as currency by weight. It was common among the Norsemen or Vikings, as a result of both their raiding and trade. The modern Russian currency the `ruble` is derived from the Russian v.....
Found on
http://en.wikipedia.org/wiki/Hacksilver
No exact match found.