Vintage ENRICA CISLAGHI 19K Gold Collar Necklace

ENRICA CISLAGHI large curved chain links collar necklace in 800 yellow gold (19.2K). Concealed box clasp and figure-8 safety.
Measurements:
Length: 18 inches
Width: 0.84 inch (21.2 mm)
Weight: 134.1 grams
Marked: 800 and Italian maker's mark < 1276 MI > attributed to Enrica Cislaghi S.r.l., located in the city of Milano, Italy and two European gold import marks.