A Scarce Treatise on the Roman Law of Usury Saumaise, Claude [1588-1653]. De Modo Usurarum Liber. Leiden: Ex Officina Elseviriorum, 1639. [lvi], 891,  pp. Octavo (6-1/4" x 4-1/4"). Contemporary vellum with lapped edges, early hand-lettered title to spine. Light staining to binding, spine ends and corners bumped. Title page with Elzevier Solitaire device printed in red and black. Light toning, faint dampstaining to margins in a few places, worm track near upper corner of preliminaries and following 20 leaves with minor loss to text (legibility not affected). Underlining to some passages in an early hand, later annotations to front free endpaper, interior otherwise clean. Ex-library. Bookplate to front pastedown. $750. * Only edition. An interesting treatise of usury and other matters relating to interest rates, principally in Roman and canon law. Saumaise was an avocat of the Parlement of Paris. OCLC locates 5 copies in North American law libraries (Library of Congress, Social Law, UC-Berkeley, University of Michigan, Yale). Another copy located at George Washington University Law School. Willems, Les Elzevier: Histoire et Annales Typographiques 488.
Book number 63193