Quite possibly a one of a kind creation and very well done. Definitely has value to the right collector. If you sell it on eBay let us know as some of us may bid.
PS - Ian, I love your descriptions.
"Some are outstanding examples of `art' others are coin butchery personified."
"The taler is itself quite rare and to all intents and purposes, to the hardened collector, it has been well and truly goosed."
Write a book about coins and I will buy it!