Bells.- Rocca (Angelo, bishop)

De Campanis commentarius, 2 parts in one (gathering a1-4 includes ‘De horologiis et campanis hoc. in. commentario delineatis, et aere incisis, declaratio’, FIRST EDITION, title within woodcut architectural border, headpieces, initials and ornaments, 4 engraved plates at the end (2 folding), ex libris of collegio Nazareno, some light browning and intermittent foxing, contemporary limp vellum, yapp edges, ink title and old paper label to spine, a little stained, some worming to rear pastedown, [Gregory & Bartlett, I, 233; RISM, Ecrits, p. 709; not in Hirsch], 4to, Guglielmo Facciotti, Rome, 1612.

***Variant B: with collation +4 A-V⁴ X⁴ Y⁴ Z⁶ a⁴. Rare early work on church bells and bell ringing. It includes a 6pp. section on horology and bells.