Prototype Metre Measuring Bar

Finland · 1987 · 2,00 mk

The stamp features a stylized depiction of a prototype metre measuring bar, presented as if it were a parcel, against a light blue-green background. The denomination '2,00 mk' is clearly visible.

This stamp likely commemorates the historical significance of the prototype metre measuring bar, a foundational artifact in the standardization of the metric system and a key element in the history of metrology.