⅔ Thaler - Philip I Countermarked Saxe-Gotha-Altenburg

Philip I of Schaumburg-Lippe ruled a territory so small and financially constrained that rather than striking original coinage in large quantities, the county routinely countermarked existing circulation pieces from neighboring states. This ⅔ Thaler bears the Saxe-Gotha-Altenburg countermark applied under Philip's authority — a pragmatic solution common among the smaller Westphalian and Lower Saxon territories struggling to assert monetary identity without the mint infrastructure to support it.

The KM#10 designation covers a wide bracket of dates, reflecting that countermarking was an ongoing administrative practice rather than a single mint event.