MONTENEGRO - MONTENEGRO First Empire / Napoleon I (1804-1814). 1 franc, siege of Cattaro 1813, Cattaro. Av. On a crown formed of two branches: CATTARO (date). Rv. Between two branches, under a wreath, N and I. F. VG.2317 - DMP.851 - MO-4.16.1.3 ; Silver - 5,83 g - 20 mm - 12 h NGC UNC DETAILS CLEANED (8360794-015). With P. hallmark on the edge. Nice grey patina, slightly porous surfaces. Superb.