Kevin Briggs from Monmouth, has kindly sent in photographs he took in the 1980’s and 1990’s.
The Defence Structures are to be found on the western side of the River Severn.
 Type 22 Pillbox @ Magor (1987)
Grid: ST 4130-8680
Note the very unusual concrete plinths that protrude above each loophole.
 Type 24 Pillbox @ Lydney
near Chepstow (1991)
Grid: SO 6420-0140
 Type 26 Pillbox @ Lydney (1991)
Grid: SO 6320-0170
 Prefabricated Type 26 Pillbox
@ Beachley, Near Chepstow (1984)
Grid: ST 5480-9030
Cantilever Type Pillbox
@ Chapel Farm, Magor (1987)
Grid: ST 4430-8520
 Section Post @ Magor (1987)
Grid: ST 8670-4190
Kevin Briggs