used 4d. grey-black, an upper left corner example with full sheet margins, cancelled "F.I." and showing circular "N.W./R.P.O./M" G.B. Railway handstamp in red; small creases at right corners, otherwise fine and a remarkable example. R.P.S. Certificate (1970). S.G. 2. Photo

Details
used 4d. grey-black, an upper left corner example with full sheet margins, cancelled "F.I." and showing circular "N.W./R.P.O./M" G.B. Railway handstamp in red; small creases at right corners, otherwise fine and a remarkable example. R.P.S. Certificate (1970). S.G. 2. Photo