Gregory XVI, Bartolomeo Alberto Cappellari of Belluno. Pope from 1831 to 1846. Completion of the two tunnels for the deviation of the Aniene course in Tivoli. Bronze medal 1835 (Year V). By Giuseppe Cerbara. (Bronze, 67.79 mm,197.41 g). PROVID GREGORII XVI PERFOSSA CATILLI RVPE ALVEVS ANIENI AVERTENDO DVPLEX APERTVS Allegorical figure of the river Aniene reclining with cornucopia; in front, panoramic view of the entrance to the two new tunnels of the Aniene at Monte Catillo; in exergue, CERBARA IOSEPH F ANNO 1836. Rev. OPVS BIENNIO ANTE INCHOATVM ANNO MDCCCXXXV ABSOLVTVM Panoramic waterfalls view of the two new exit tunnels of the Aniene at Monte Catillo; upwards mountains and part of the city of Tivoli to right; below to left, CERBARA IOSEPH F. Boccia 67. Patrignani 1929, 37. Martini 1998, 1214. RZ 624. Nearly Uncirculated. Very rare. The medal, as reported in the obverse, was engraved in 1836, reporting the same event as the Lorenz specimen.