Stolberg was divided but many of the coins are listed as joint coinages just under Stolberg. This appears to be Krause MB# 24 and attributed to Joint Coinage II: Wolfgang, Ludwig II, Heinrich XXI, Albrecht Georg, Christof I,
1538-1555.
The date seems to be clearly (15)51.
Saurma has the same attribution for the type (omitting the generational suffixes).
http://saurma.info/1/2284.htm
I don't see any similar coins under Wurttemberg in Krause or Saurma.