Poliarte, clear Murano glass pendant from 70s

Good vintage condition with trace of age and use on the metal mount, no chips or cracks on the glass but a couple of almost invisible felatures on a cube element as shown in pictures. Manufactured by poliarte and published on the main catalogue. Produced in italy during the 70s. Made from clear murano glass. full working with eu standard, adaptable on demand for usa standard.