Polar dials are rather unusual. They
register the hours between 6.30 am and 5.30pm
The dial is made of brass and is available in two sizes --- as shown, with a dial plate
300mm x 450mm (12" x 18") [ref P2], or 250mm x 300mm (10"
x 12") [ref P1]. This dial is supported at an angle of 52
degrees by two pierced brass supports. For other latitudes please enquire.