An early 20th century blister pearl, diamond and sapphire novelty brooch

An early 20th century blister pearl, diamond and sapphire novelty brooch
Set with a large hollow blister pearl in the shape of an elephant's head with cabochon sapphire eyes and pavé old brilliant-cut diamond ears, mounted in silver and gold, circa 1930, 3.5 cm long, tusks deficient, blister pearl not tested for natural origin