Gunter type projection on face for latitude of London. Five stars with date of south positions at midnight. Same 5 stars on quadrant between equator and line of tropics. Sights are missing; plumb-bob and line are replacements. Bead is missing. Inscription means it was made after 1752 when England adopted Gregorian calendar.
Matériel
Unsigned -"NEW STYLE" on the right of the lower arc.