Ordnance Survey Bench Mark

Ordnance Survey Bench Mark (HM27QR)

Location: London, England SE10 8XJ Greater London
Country: United Kingdom
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N 51° 28.681', W 0° 0.083'

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Public Standards of Length

Ordnance Survey Bench Mark
The small plate (marked 'G1692') is an Ordnance Survey bench mark. Similar marks appear on walls and buildings across the country. The height of each above sea level has been measured and recorded. Dating from the 1940s, this particular mark is a replacement for an older mark that once existed nearby.
Public Standards of Length
These British Imperial Standards were first mounted outside the Observatory main gates some time before 1866, to enable the public to check measures of length. The stated length is the distance between the inner faces of the two D-shaped studs.
HM NumberHM27QR
Marker ConditionNo reports yet
Date Added Thursday, May 24th, 2018 at 1:01pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)30U E 708221 N 5707248
Decimal Degrees51.47801667, -0.00138333
Degrees and Decimal MinutesN 51° 28.681', W 0° 0.083'
Degrees, Minutes and Seconds51° 28' 40.86" N, 0° 0' 4.98" W
Driving DirectionsGoogle Maps
Which side of the road?Marker is on the right when traveling South
Closest Postal AddressAt or near Blackheath Ave, London England SE10 8XJ, GB
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