Going from some of my pics, Frodo's post above is correct. 56 had codes starting with T*, and also *T but near the end when they were at Leuchars, they went to W*. Checking some of my pics, 11 had codes U*, 25 had both V* and X*, 111 had J*. I don't have any of 43 with other than G- codes, although I have pics of F3's in 25 sqn marks, with both V* and X* codes, but one of them could have been an ex 43 aircraft.