The self same type appears (at 19 mins) in a colour video that I posted a link to in #9517. Seems the Curtiss 75's were, like the Vengeance Mk1, a French order that became surplus to requirement for certain well known reasons:-
https://www.youtube.com/watch?v=fBwkYRGnd0s
No Vengeances, Danny, sorry! But an even rarer RAF steed at 19mins in, also an ex-French order bought by the UK Purchasing Commission. Variously ID'd as a Curtiss 75 Mohawk and a P36. Were they one and the same?