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Injection Point | Gaping Gill Main Shaft [SD751727] |
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Detection Point | Not detected [SD751727] |
Tracer | Inscribed wood |
Quantity | Not known |
Detection Method | Not detected |
Time | |
Distance | |
Average Velocity | |
Depth |
Date | 19th Century |
Notes | Wood inscribed with words saying a reward available if wood returned to McKenney Hughes |
Test credit | T. McKenney Hughes |
References | Craven Pothole Club Journal 3(4):183 (1964) |