Silver Horizontal sundial By Butterfield C 1680

Silver Horizontal sundial signed Butterfield à Paris, C 1680
The sundial is graved with 20 European cities latitudes.
The folding gnomon is a bird with degrees of latitudes 40 to 60 Degrees.

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Silver Horizontal sundial signed Butterfield à Paris, C 1680
The sundial is graved with 20 European cities latitudes.
The folding gnomon is a bird with degrees of latitudes 40 to 60 Degrees.