Ordnance Survey Flush Bracket S0497

Ordnance Survey Bench Mark Flush Bracket S0497, St. Cyriac's Church, Lacock, Wiltshire


A brass Bench Mark. This is set at a known height and was used as a fixed point for mapping and surveying. This was placed by the British Ordnance Survey (OS). The letter and number at the bottom is the code for this particular Bench Mark. With modern technology they are no longer used and are gradually disappearing.