4 Mariengroschen - Louis Rudolph

Louis Rudolph ruled Brunswick-Wolfenbüttel from 1731 until his death in 1735 — a reign of just four years, which sharply limits the window for this type. The Mariengroschen, a north German silver denomination whose name derives from the Virgin Mary imagery common on earlier issues of the type, remained a workhorse coin in Lower Saxon territories well into the eighteenth century despite repeated currency reforms pressing against smaller silver denominations.

Welter 2476 is the standard reference for this reign's minor coinage. The four-year production window across Claustal and related Brunswick mints means die combinations are relatively constrained.