Comments Ward Lock refers to "a triple row with remains of two kistvaens" lower down from Cosdon summit, so presumably this is the same as SMR SX 69 SW/19?
References Ward LockGuide to Dartmoor, 8th edition (1927-8) 87.
HER/SMR number
6922 SX 69 SW/48.
NMR number 444171 SX 69 SW 20.