Very rare Ceremonial Flask - Silver gilt - Italy - Mid 18th century

Museum-worthy ceremonial crystal bottle decorated with polychrome flowers, wrapped in a gilt silver plant-themed setting and topped by a stopper. No hallmarks whatsoever, but it has been tested for silver (both on top and bottom) . Considering the style and kind of craftsmanship, I assumed the item was made in Italy in the 18th century. It also has two typical 18th century’s Italian assayer’s marks on the bottom (visible in the penultimate picture) . Height 17. 8 cm Total weight: 266 grams In good condition Tracked and insured shipping