Pair of ruby, emerald and diamond presentation dress studs and two presentation tie pins, circa 1900

Comprising: a pair of presentation dress studs designed as the cipher of Princess Marie Louise of Bourbon-Parma, Princess Consort of Bulgaria set with circular-cut rubies and emeralds and rose diamonds, accented by red enamel, Austrian maker’s and assay marks for gold, fitted case; a gold presentation tie pin of similar design enhanced with red enamel, Austrian maker’s and assay marks for gold, fitted case; and a presentation tie pin designed as the cipher of Tsar Ferdinand I of Bulgaria.