Limited English edition, number 248 of 675 copies. L�onard Rosenthal was a famed Parisian jeweller who personally commissioned Dulac's illustrations; they first appeared in the French edition of the same year. As noted by Dulac's bibliographer, "[Dulac's] plates, truly genius, do much to bring a fanciful touch to the otherwise stark exposition of a treatise on pearls". Large quarto. Original quarter cloth and grey boards, lettering and pictorial decoration to spine in gilt, pictorial decoration to front cover in silver with printed label, patterned endpapers, top edge gilt, others untrimmed. Frontispiece and nine colour plates with printed tissue-guards. Foot of spine bumped, minor tear to lower joint, extremities worn, some foxing, some leaves slightly loose, occasional dampstains; a good copy.