Pallegoix, Denis-Jean-Baptiste Dictionarium Linguae Thai sive Siamensis. Interpretatione Latina, Gallica et Anglica. Illustratum Auctore D.J.B. Pallegoix, Episcopo Mallensi, Vicario Apostolico Siamensi. Paris Jussu Imperatoris Impressum in Typographeo Imperatorio 1854
First edition, folio, pp. 897. A very good copy bound in recent old style half calf, occasional spotting throughout.

The first edition of Pallegoix's famous dictionary.