Lots of promising rocks but no benchmark located.
Reference: Side by Side
Archives
B.M. 1500.3, E facing (Not Located)
Reference: Side by Side
B.M. 1551.2, E facing (Not Located)
Reference: Side by Side
Shavercombe Head
Reference: OS Maps
Hentor Warren Bound Stone No.4, inscribed H W B
Notes: The fifth stone is missing but was once to be found at the confluence of the Shavercombe and the Plym.
Thanks go to Steve Granger for supplying this item’s photo.