Vierer - Adrian V

Historical Context: This Vierer was issued in 1685 under Adrian V von Riedmatten, Prince-Bishop of Sion (1672-1701). As an ecclesiastical principality within the Holy Roman Empire, Sion maintained significant autonomy, including minting rights. This small billon denomination was vital for daily commerce in the Valais region, reflecting the bishopric's economic self-sufficiency during a period of relative stability in late 17th-century Switzerland. Adrian V's reign continued the traditional minting practices of the see.

Artistry: The design of this modest 16mm billon coin reflects a utilitarian, provincial Baroque style, typical for low-value denominations of the era. While no specific engraver is recorded, the artistry prioritizes legibility over elaborate detail. Obverse designs commonly featured the Prince-Bishop's personal arms or a bust, while the reverse often displayed the arms of the Bishopric of Sion (a cross) or a denominational mark, executed with simple, clear lines suitable for the small flan.

Technical/Grading: Due to its billon composition, light weight (0.5g), and small diameter, the Vierer often exhibits characteristic technical challenges. High-points susceptible to wear typically include the central elements of the shield or effigy, and the legends. Common strike qualities include weak strikes, particularly at the peripheries, and potential off-centering. Planchet imperfections, such as irregular shapes or laminations, are also frequently observed, impacting overall preservation and grade.