Equator-Seeker, Stone 33a, West Kennet Avenue - (August 2018)

This appears to me to represent a right profiled face looking up into the southern sky, mouth open - calling or singing. Depending on the angle of the light, various dimples in the stone can take turns to represent its eye

See Pattison pages 59, 60, 93 and 106
 
To see the reverse view of this face click here