HOROLOGIUM DEVOTIONIS. [COLOGNE: ULRICH ZEL, C. 1488]

Chancery 16mo (4 1/4 x 3 1/8 in.; 108 x 80 mm), types 115G (title and headings), 67G (text), 22 lines, collation: a7, b-o8, p10=[121] leaves; lacking title-leaf with one woodcut, 23 full-page woodcuts printed from 18 blocks and 13 metalcuts with foli