Brian Andrews -- 1964 Lotus Mk.23 / Tom Claridge -- 1965 Crossle C9S-27
This looks like the Group 4 pace lap, as the flagman isn't displaying the yellow flag. Dave Olson in his Lotus finished 11th, Claridge finished 6th in his Crossle. #156 is 8th place finisher John M "Chip" Fudge in his 1962 Genie Mk.4.