Stretching the old memory a bit here, but I think Manchester UAS (MUAS, not MASUAS at that time) got their Bulldogs in the Spring of 1974. XX614 was, I think, the Boss's steed - Sqn Ldr Dick Gowring. 615 was Mike Kirk's, 616 was Steve Fisher's, 617 was Rod Newman's. Rod, you probably remember better than I do if you're looking at this.