MG 18-80 Saloon .Samuelson 1930 Monte Carlo Rally. Photo.

This looks like it maybe taken at a docks on route to Monte. The car started at John o'Groats .
Among those lined up in front, the shorter figure 2nd left appears to be the legendary MG boss Cecil Kimber and Sir Francis Samuelson, the driver is on the right. 

. Photo available 7x5 or 10x7 inches ( 175x125mm or 250x175mm)
 

Photo printed from original negative in a commercial photo lab.  No Copyright lettering present on the actual photo you receive