It's not a long time since I posted a quiz about a Vulcan Twelve....so I had the chance to learn something about that car, in particular that Vulcan and Lea-Francis jointed to build a car in middle twenties.
So, I think the quiz car is a Lea-Francis-Vulcan 1LFS (tourer model is perhaps named Kirkstone), 1926-7 with a Anzani engine or a Meadows one.