I just did some further research and I believe its a 1916 Perry 11.9 made in Tyseley, Birmingham.
Bean bought out the Perry company in 1918 which I guess is why the cars look so similar.
Exactly right. It's actually a 1914 model, but you're close enough for the point. Just to make the inter-relations even more complex, the Perry company produced this car whilst being run by a member of the Bayliss-Thomas family.
There are hundreds, nay thousands, of marques we haven't had on Autopuzzles yet. Strike the Perry.