THOULET, Julien / TOLLEMER, Alphonse. Carte générale bathymétrique des océans dressée par ordre de S.A.S. le prince de Monaco. Monaco, ca. 1937. 720 x 1130mm. Imprimé en couleurs. Sheet [1]: Title and general legend, Sheet [2]: index map, plus 26 sheets labeled A, A’, B, B’, C, and C’. Map size: 72 × 113 cm. Some maps split along the center fold and torn at the edges. Set of bathymetric maps of the oceans (complete in 26 sheets) from various editions produced under the direction of M. Ch. Sauerwein by M. Tollemer. Compiled by order of H.S.H. Prince Albert I of Monaco (1848–1922). Depths are shown by color shading and bathymetric soundings in meters. The project for the General Bathymetric Chart of the Oceans (often abbreviated as Bathymetric Chart of the Oceans) was presented in 1904 and adopted at the International Geographical Congress in Washington on September 8, 1904. The first edition served as the foundation for later editions (second, third, fourth, etc.), which progressively improved methods of sounding, cartography, and projection.