'Dart.i.fact | D'ärtə fakt | (Brit. Dart.e.fact) noun 1 an object or site found on Dartmoor, typically of cultural, historical or geological interest.'
Reference: Side by Side
Notes: This benchmark appears to be more modern than the one on nearby Brunel Terrace Railway Bridge and isn’t marked on Side by Side. It is, however, well documented elsewhere.
Reference: Bench Mark Database and Jochta’s Bench Marks
Reference: Side by Side, Bench Mark Database, and Jochta’s Bench Marks