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13th order - GPS	3rd order	4th order
Active station	Admin/Changes	Admin/Links
Anatomy	Anomalies	Berntsen
Block	Bolt	Brass Plate
Buried Block	Cannon	Concrete Ring
Corporal Curry	Covered Bolts	Crested trig pillars
Curry Stool	Cut	Disc
Duplicate FBs	FBM	Fenomark
Flush Bracket	Flush bracket	Fundamental Benchmark
GPS Station	Garden Trig pillars	Garden trig pillars
Gravity Station	Great Glen Project	Hydrographic Survey Station
Hydrographic survey station	Intersected Station	Links
Missing FBs	NCE Adjustment	Order
Other	Palmerston forts	Passive station
Pillar	Pipe	Platform Bolt
Plug	Primary	Project Emily
Questionable Names	Rivet	Sandbox
Sea Level	Secondary	Sighting Tubes
Special Project pillars	Spider	Surface Block
TP7287 Newc	TP7287 Newcastle Active Station	The History of the Retriangulation of Great Britain
Theodolite	Trig Stations of the 19thC Principal Triangulation	TrigpointingUK
Trigpoints	Types	Unused trigpoints
Upper centre mark	Vanessa

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