Sol d'Or clover brooch c. 1970s Vintage Irish Sol d'Or brooch. Celtic knot

Sol d'Or clover brooch c. 1970s Vintage Irish Sol d'Or brooch. Celtic knot pattern in the leaves, and centre of brooch is set with a purple stone. Signed Sol d'Or on reverse. Measures approx. 5.3cm x 4.6cm. Good vintage condition with wear and patina to the goldtone finish, giving the brooch an aged, rustic look. Pin and clasp in secure working order. Celtic knot, Irish jewelry, shamrock, Scottish knotwork