18k Gold Enamel Butterfly Brooch Italy Marked 750 Small Vintage Pin

Gold Enamel Butterfly Brooch Italy Marked 750. Small adorable brooch in blue & green. Marked 750 for 18kt Gold (and tested), with other faint Italian hallmarks, which I looks like 250 or 256 fl. Vintage circa 1960s art deco resurgence, the pin looks to have been replaced with a steel pin at some point. Lovely little pin brooch in good condition.
Approx 20mm x 18mm. Approx 2.93g