Luxembourg 29 July 1965 - 20 Francs Back Photographic Proof Early Design Concept (Pick Unlisted)
Unlike the finalized reverse design-featuring the more complex valley, dam, and engineered river control structures associated with the issued Pick 54-this early concept emphasizes a pastoral scene with minimal architectural intervention. The absence of tightly integrated guilloche framing and reduced ornamental precision indicate that the reverse design had not yet reached its final technical configuration. Read more →