One of the reminders of the difficulty in constructing Hadrian’s Wall can be seen at Limestone Corner (MC30), to the east of Carrawburgh, where the ditch to the north of the wall was left unfinished. It is estimated that one of the single blocks removed from the ditch originally weighed 13 tons.
Yarmouth Castle on the Isle of Wight retains some of its original Ministry signs including this information board close to the entrance. The blank section at the bottom would have indicated (using similar signs), ‘This monument is in the care of the Ministry of Public Buildings and Works [or Ministry of Works] / It is an offence to injure or deface it’.
The postern gate is located in the south-east corner of Pevensey Castle. It was constructed adjacent to the Roman wall, and it opened onto the base of one of the Roman bastions. The sign is mounted on the floor of the gate, as in the entrance to the Roman fort.