Instone was entered at the 1952 British Grand Prix meeting as number 32 and the background is definitely that circuit, I do not know if he started the 500cc event, but he was most certainly there at some stage.
Do you mean "31"?
In which case, I'm pretty sure it must be Instone at the GP meeting, and the record is off.
As Dutchy says, it has to be Silverstone (though I'm struggling to know where), it's not the International Trophy, and Instone should be the only Mezzolitre present. The road marking suggests to me that he is either off-track or going the wrong way. So perhaps (in untimed practice, judging from the empty grandstand) this is the moment his weekend ended?
Or perhaps Rich is right and it's a pre-event test?
Rich
I have no records of Bashford driving the car anywhere, although there's a lot of smaller events to fill in. I find it strange that he didn't even have one go, even in just a sprint or climb. I only have Instone, Byrnes and Poppe so far, and the latter really intrigues me. A Land Rover man, but in Manufacturing Engineering , and as anyone in the trade knew, Mfg Eng only met with Des Eng so they could call each other idiots. There's much more to the Mezzolitre story than we know.