1965 (2nd ed.) 55 p., 22 pls (depicting 218 figs of molluscs), printed wrappers. Previous owner’s name on title-page.
1965 (2nd ed.) 55 p., 22 pls (depicting 218 figs of molluscs), printed wrappers. With ex libris.
1965 (2nd ed.) 55 p., 22 pls (depicting 218 figs of molluscs), printed wrappers.