I have seen road signs for individuals or battles etc but vever seen such a generic road sign before. The first sign is in Norwich, but not sure of the second "world war two" - Google Maps
Well there are apparently a few Memorial Cottages ... if you Google ... but I found this !! Culture Minister David Lammy announces plans to list Norfolk War Memorial Cottages, built to honour VC heroes from World War II. | M2 Presswire (November, 2005)