This article discusses the importance of a coin of Henri IV of Luxembourg discovered by one of the authors of this note. The reverse of the coin was completely unknown and represents a new type, not just a minor variation on examples previously published in volumes such as Mayhew.
BNS Research Blog 
An interesting find indeed. The article mentions that other continental sterlings have been found on the same farm, so I’m wondering whether this coin is part of a scattered hoard? How far away were the other sterlings found?