Monarch's first 720 G-AZFB arrived on 28/11/71 and the first lilac Court Line 1-11 G-AZEB was delivered on 8/12/71. First Britannia 737 in their 2nd scheme I THINK was G-AXNB which I first recorded as such on 26/2/72. Looks like a summers day so 1972-1974, with Court Line folding on 15/8/74. Presumably taken from a floodlight pylon.