Two blocks of wood, hinged to be closed for carrying. A compass is set in the lower block. Both blocks are scaled to the gnomon which is a thread extending diagonally between them. The cover block has on its exterior surface a rotatable wooden disc with pointer and scale. Marked with tables and scales in Chinese script. Down the sides of the dial are 13 holes for setting the angle of the lunar dial. (Robert P. Multhauf, "Catalogue of Instruments and Models," 1961).

Rectangular wood dial covered with paper consisting of two leaves that fold flat. The dial is surrounded by a decorative border with a floral pattern. String gnomon (no longer extant) would attach between the inner surfaces of the two leaves. Exterior top: list of cities in the Americas, Italy, France, Spain, and Germany along with sundial's numerical position. Interior: sundial base and embedded compass (no longer functioning).

Brass sundial with three adjustable legs and two levels attached to the side. Engraved along perimeter of top of compass: "Paris 49 Londres 51 St Petersbourg 59 Madrid 41 Milan 45", along with sundial's numerical position. Engraved on underside of compass: "Lisbonne 42 Constantinople 41 Berlin 52 Vienne 48 Hambourg 53."