Related to
https://www.openstreetmap.org/node/2700434341

Possible second historic boundary marker next to it; local knowledge needed and survey needed for details

White boundary marker stone

Suggested tags
boundary=marker
direction=* (the -average- direction the inscription(s) is/are facing)
format=rectangular_stone
format:top=round
historic=yes
inscription=* (the inscription(s), sides seperated by a '/' slash)
mapillary=296106631984456 (preferably upload a proper one instead)
marker=stone
material=stone (or concrete)
survey:date=YYYY-MM-DD (date of your own survey), if added without survey, use below date.

Mapillary 2021-03-23 by noid
https://www.mapillary.com/app/?pKey=296106631984456&lat=50.922241419277&lng=-1.5980781196787&z=17&focus=photo

This note was made as this object is near a border and looks similar to other ones nearby, such as
https://commons.wikimedia.org/wiki/File:Old_Boundary_Marker_by_Silver_Street_path,_Emery_Down,_Minstead_Parish_(geograph_6044943).jpg