Półgrosz - Siemowit III Elder Płock mint

Historical Context: The Półgrosz of Siemowit III, struck 1350-1379, marks a crucial era for the Duchy of Masovia. Siemowit III (the Elder) was a powerful Piast duke, skillfully navigating the complex political landscape between the unified Kingdom of Poland under Casimir the Great and the Teutonic Order. His coinage, particularly the Półgrosz—a larger silver denomination influenced by Bohemian models—underscored his ducal sovereignty and economic autonomy, reflecting Masovia's significant regional influence from mints like Płock during the late medieval period.

Artistry: The design of this Półgrosz, attributed to anonymous mint artisans of the Płock mint, embodies the late Gothic stylistic school prevalent in Central European coinage. While specific engravers remain unknown, the aesthetic prioritizes clear heraldic representation and legible epigraphy. Typically, the obverse features a ducal emblem, often a crowned eagle or shield, symbolizing ducal authority. The reverse usually presents a cross or another simple heraldic device surrounded by a Latin legend proclaiming the ruler's name and title, such as "MONETA DVCIS MAZOVIE."

Technical/Grading: As a hammered silver coin, the Półgrosz exhibits characteristics typical of 14th-century production. High-points for wear are generally found on the raised elements of the crown, the eagle's head or wings, and the outer edges of the legend. Technical strike quality often varies, with common occurrences of irregular flan shapes, off-center strikes, and areas of weakness due to uneven hammer blows. The silver alloy, while generally good, could show minor variations. Collectors seek examples with strong central strikes, minimal planchet imperfections, and well-preserved legends for optimal eye appeal.