Johannes de Sacro Bosco (c.1195-c.1256)
LIBELLUS DE SPHÆRA. ACCESSIT... COMPUTUS ECCLESIATICUS, ET ALIA QUÆDAM IN STUDIOSORUM GRATIAM EDITA. CUM PRÆFATIONE PHILIPPI MELANTHONIS (LIBELLUS… DE ANNI RATIONE; CISIO IANUS IN CARMINA REDACTUS). (WITTENBERG: JOHANN KRAFFT, 1550), WOODCUT DIAGRAMS, 4 WITH VOLVELLES (ON B7R, B8R, C5V, D5V), 2 WITH OLD HAND-COLOUR
Gemma Frisius (1508-1555).
Arithmeticae practicae methodus facilis. Wittenberg: (Heirs of Peter Seitz), 1551 (1550)
, woodcut vignette of a teacher and pupil on title, diagrams, errata printed above colophon
2 works bound in one volume, 8vo (157 x 97mm.), contemporary blindstamped pigskin over wooden boards, stamped "IRH 1515" [or 1518?] on upper cover and with a roll-tool containing the date 1544, two clasps, binding rubbed and slightly chipped, lacking one strap
inscriptions on flyleaf dated 1551 and 1553 (names crossed through); Bernhardus Matthaeus, inscription dated 1670, written over an earlier inscription, and his black wax seal on title with the initials BM; bought from Jeffrey D. Mancevice, Worcester, MA, 1988
Sacro Bosco: Tomash & Williams S5, S4; USTC 667489; VD16 J728; Gemma: Tomash & Williams G33; Hoogendoorn p.358 GemF04 (no copy examined); VD16 G1115 (same setting of the title-page and same colophon, but with date 1550 on title-page)