Percy Bysshe Shelley [full inscription unknown]

Jez Nicholson on Flickr

Colour: stone

Wikimedia:

Flickr:

See also...
Nick Harrison on Flickr
Simon Harriyott on Flickr
Spudgun67 on Wikimedia Commons
Alwyn Ladell on Flickr
Marvin Barretto on Flickr
Open Plaques on Flickr
Simon Harriyott on Flickr
sleepymyf on Flickr
Open Plaques on Flickr