Post away, V2, I'm still - sparodically - reg. no. seeking.
Amazing contributions from everyone, v. interesting, it would be good to find out it's history.
Suggest you go on www.fmagna.org and post your photos as a mystery car.
If you look on the mystery cars you can see cars with the cut down doors. eg slide 51/75/76 & 133.
There's 300 photos to look at, keep you busy!
Your car has distinctive headlights which don't look standard, & the power bulge.
Problem is many cars will have been changed to 2 seater in more recent years & even your car could have been altered back in the day, but who knows, plus restoring an old car people would revert to the original high door.
Your car could well have been used for trials competition.
The power bulge for the manifolding would be for a car with crank driven supercharger but although there is a slightly large hump on the front valance there doesn't seem to be any sign of a carb. top sticking up. It may have been there & taken off reverting to carbs esp. in days of rationing during & after WW2.
Could be too, that having this type of power bulge bonnet to look like it was s/charged much as more modern times people have cars altered to look more up rated than they are.
A lot of cars went abroad especially to USA & Tom Metcalf in Ohio runs the triple M Register for USA, & he has a F2 with Jarvis body & the supercharger & power bulge.http://www.remarkabl...932-mg-f-type-1
He owns an ex Lancs police car which maybe this one or an Ltype amongst his collection. Ask him tom metcalf email@example.com>
He also owns my first MG, a PB which I had in 1963.
Although MG supplied chassis to coachbuilders, this looks like a usual body & if so they didn't make many, & if the MMM still have the records it must be possible to find the likely registration.