A photo I posted earlier this year was of the round barrow at Codhill Heights, an inconspicuous 296-metre high summit on the ridge behind Highcliff Nab. Over the years a cairn has been built over the barrow which dates to around 2,000 BC. The National Park has now removed this “modern” cairn exposing some original kerbstones and a large partially buried upright boulder. However, the removal has also revealed a large lump of concrete set against the boulder. The concrete has a hole, perhaps for a post and the initials “T.P.” and “C.S.” with the date “11/11/43”, all impressed before the concrete had set. All very curious. The 11th of November is, of course, Armistice Day, maybe not significant.
Addendum: 4 Apr 18 further mentioned on the NYM blog, here.