Help- what model is this bike?

Long time no post but I do lurk a lot.
Been asked to ident the bike in this photo -

(Because I ride a 45 people think I know something about old Harleys!)
Any help much appreciated
Mark

early 30s 45" flathead. Key points are forged forks, short timing cover, and tanks.

Right side drive chain and front exhaust outside curved single downtube mean 45"

bacon-slicer front plate is not a British format number, so "somewhere in Europe"

hi mark, its a dl model 1929-31 note straight front down tube on frame, because it used the single frame and had a upright genny next to front cylinder. cheers jib

see more info here
http://www.dl45homepage.com/

that's the one they called the "three cylinder Harley", isn't it?

I'd forgotten that the first 45s used the single-cylinder frame

Yes, and the third cylinder never worked!! Well.... sometimes!

Thanks Jib & 45brit, I knew you guys would come up with the goods.
Will get back to lurking.
Thanks again
Mark