English Fruitwood Nocturnal

English Fruitwood Nocturnal, the main index arm stamped with owner's name and date "C. Cook 1719," the obverse main plate stamped with months and hours (1-12-1-12), the volvelle with indicators stamped GB and LB (Great Bear and Lesser Bear), and divided date scale (1-29) and hours, the reverse with compass rose, lunar age scale for tides, and Pole Star correction for latitude, the handle with pierced heart and stamped Both Bears, the center with brass framed sight, body ht. 8 in.