Keep in mind that during this golden era of shooting fine motor cars often were equipped with tools sometimes in fitted cases. Again; I expect the reality was you could well end up quite a distance from an automotive repair facility and these were considered necessities at that time.
I look at the tools in a nicely fitted case as a reminder of those more gentelmanly times and an era the likes of which we'll never see again.
Jim

The 2nd Amendment IS an unalienable right.