Vintage 70s Modernist De Passille Sylvestre Brooch

Made in Quebec, Canada, signed, vintage 70s modernist brooch by Sylvestre de Passille, a renowned master of enamel jewelry, plated over brass or copper with gorgeous abstract floral motif enamel work, a rare find, in good vintage condition overall, with some wear/aging signs as seen in the photos, not very noticeable when worn, measures 4 cm in diameter.