210, Lot: 452. Estimate $100. Sold for $201. This amount does not include the buyer’s fee.

ITALY, Papal Bullae. Gregory X (Tebaldo Visconti). 1272-1276. PB Bulla (36mm, 39.52 g, 12h). GRЄ/GORIVS/· P P · X’ · in three lines; all within linear-beaded border; (Ω above P P) / S PA S PE, bare heads of Sts. Paul and Peter, facing slightly right and left, respectively, each within beaded halo; cruciform scepter between; all within beaded-linear border. Serafini I 1-2. VF, some minor roughness and flan waviness.

From the Luparello Collection.

Gregory X did much to ally himself with the Mongols. Among his ambassadors sent to the Khan Qubilay (Kublai) was a young Marco Polo.