Specimen set, Five Pounds, N-1/U, Ten Pounds, N-1/00, Fifty Pounds, N-1/B, One Hundred Pounds, N-1/BB, all 1 October 1968, all stamped specimen either side (NR74, 81, 84, 86; Pick 181s, 184s, 185s, 186s) [4]. About uncirculated to uncirculated £900-1,100