I could be wrong here, but I'm pretty sure it was a Humber Super Snipe IV
I like the shot quite a bit as well. I'd like to see line at the top of the photo, where it seems to fade out just a couple inches above the light fixture, enhanced a bit: That's a very nice, organic s-curve you've got going on there and if that were my shot, I'd want to play that up to the fullest.
I could be wrong here, but I'm pretty sure it was a Humber Super Snipe IV