Monument record TYN 100 - A World War II pillbox is visible in a field to the north of Loompit Lake, Trimley St Martin

A World War II pillbox is visible as a structure on aerial photographs taken from 1944 onwards, centred on TM 25853812 in a field to the north of Loompit Lake, Trimley St Martin. The structure is a rectangular half-open half-roofed Type 23 pillbox which may have had a machine gun mounted in its open half. The pillbox appears to be isolated and there are no other signs of military activity in the immediate vicinity, possibly suggesting that the pillbox was no longer manned in 1944.
(S1) (S2) (S3)
50 yards from Hill Cottage Track, near Morston Hall, Trimley St. Mary. Type 23 pillbox with a rear entry and blast wall. There is an extra embrasure defending the entrance. Of concrete and in fairly good condition except for a large settlement crack between the pillbox proper and the AA emplacement. The pillar and mortise are still intact. Fire trajectory was over the River Orwell (S4).