SWITZERLAND. 2001 Patek Phillipe and Tiffany & Co. Relationship 150th Anniversary Medal. Silver. Mint State.40 mm. 29.6 grams, XRF tested .430 fine, .409 troy ounces ASW. <strong>Obv:</strong> Building inscribed PATEK PHILIPPE & CO. / TIFFANY & CO. on ornate field flanked by dates 1851 left, 2001 right. <strong>Rev:</strong> Peripheral design surrounds central legend IN COMMEMORATION / OF THE 150TH ANNIVERSARY / OF THE EXCEPTIONAL / RELATIONSHIP BETWEEN / PATEK PHILIPPE / AND / TIFFANY & CO., marked PATEK PHILIPPE / GENEVE below.From the Dick Johnson Collection.