Printing plate

Copper plate for printing mariners compass cards.
Plate, printing with two prints. The small degree scale on the N & S points is possible for use in conjunction with a needle slewed to allow for variation but allows for an error of 5 deg. on each side only.
Graduated to quarter points & quadrantally in degrees.
Plate 7" square (17.8 cm)

Object Details

ID: NAV0229
Type: Printing plate
Display location: Not on display
Creator: George Stebbing & Son
Date made: circa 1845
Credit: National Maritime Museum, Greenwich, London, Caird Collection
Measurements: Overall: 2 mm x 177 mm x 177 mm
Parts: Printing plate