Rare Coin Valued at £15,000

[Lex]

Not bad for an afternoon's work: http://www.rugbyadvertiser.co.uk/news/rare-gold-coin-found-in-field-near-rugby-expected-to-sell-for-up-to-15-000-at-auction-1-8250201

[rebbonk]

I've often wondered about metal detecting. Years ago I scratch built a detector, but gave it away before ever using it in anger.

[cathidaw]

Why would you use it in anger?