by C.M. Weishaupt und Söhne, Hanau, mid-19th century, the rim numbered 2751, of cartouche-form, the lid set with an oval medallion enamelled translucent blue over an engine-turned ground and applied with diamond set scrolling initial H below the Imperial Russian crown for Nicholas I (1825-1855), framed by a diamond border and flanked by six diamonds set amongst gold foliate motifs against a stippled ground, the base and sides engraved with rocaille and further foliate scrolls. 9.6cm wide, 210 grams gross