REGNIER, Elias. Casus longi Sexti et Clementinarum, Strassburg, Johann Pruss, 1488. 2° (280 x 201mm). 153 leaves (of 154, lacks title-page), 50 lines and headline, double column, gothic letter, initials and paragraph marks supplied in red, foliated throughout in a contemporary hand and an index supplied on a blank leaf, probably in the same hand. (Last leaf detached and slightly soiled). Contemporary calf, sides tooled to a diaper pattern. (Lacks spine and clasps, both covers detached). Provenance: Everhard of the Order of the Canicorum Regularium in the diocese of Trier (near contemporary inscription). FIRST EDITION. HC 13812*; BMC I, 122; Goff R-117.