DUM SPECTAS FUGIO (Whilst thou lookest I fly)

The hour lines have both Roman and Arabic numerals. Hyperbolic declination lines are marked with the signs of the Zodiac to tell the time of year (in summer). Apparently the motto and perhaps the whole dial, is a copy of one of four dials on the market  house (or ‘cross’) at King’s Lynn, erected 1710, and still extant there in 1890.