Nina Rindt keeping a close eye on Jochen, Jo Siffert and Graham Hill all doing their best to focus on their Loti and need for speed rather than the black booted babe…
A famous Rainer Schlegelmilch shot at Monza in 1969, i don’t think its ever been established exactly who ‘boots’ is? Quite a tidy unit.
Jackie Stewart took the race, the best placed Lotus 49 was Rindt in second. Siffert was classified eighth but withdrew with engine failure, Hill retired his 49 the lap before Jo with driveshaft failure and was classified ninth.
Photo…
Rainer Schlegelmilch
Finito…
primotipo... 
No mystery regarding “boots”. We see Bette Hill, Jochen Rindt, Jo Siffert, Graham Hill, Simone Siffert and Nina Rindt.