Vintage Opaline Glass Coro Sterling bouquet brooch

For your consideration, a stunning statement  brooch pin signed Coro Sterling, based on my research could be by Adolph Katz, vintage 40s, featuring a large flower bouquet made out of sterling silver, with rich yellow gold wash finish over sterling, accented with opaline glass cabochons, beautiful in its simplicity, a rare and collectible jewelry piece from a Montreal estate! Condition: pre-owned vintage condition, the mechanism works great, some expected signs of wear/aging as seen in the close up photos consistent with normal use Measurements: 8.1 x 4.8 cm Please view the photos for measurements and details.