Wire
From TrigpointingUK
A 'Wire' is an uncommon type of 3rd order triangulation mark.
7 instances are recorded in the OSGB36 list [1] and all are associated with Colliery headgear. In T:UK the 'Wire' marks, along with marks of other types, occur within 4 triangulation stations. These stations have all beeen destroyed and there are no known photographs.
The trig stations which included these 'Wire' marks were:
| T:UK | Station name | Order | Computed | Block |
|---|---|---|---|---|
| TP16550 | Algernon Colliery Headgear, West Rope | 3 | 1947 | NZ29 |
| TP16550 | Algernon Colliery Headgear, East Rope | 3 | 1947 | NZ29 |
| TP14654 | Reedley Colliery Shaft, West Wire | 3 | 1949 | SD74 |
| TP14654 | Reedley Colliery Shaft, East Wire | 3 | 1949 | SD74 |
| TP17196 | Rishton Colliery Shaft, South Wire | 3 | 1949 | SD74 |
| TP17196 | Rishton Colliery Shaft, North Wire | 3 | 1949 | SD74 |
| TP18738 | Watnall Colliery, Wire Centre | 3 | 1938 | SK54 |
