Is this an early updraft carb ?

Here is a picture of the three side draft Kingston L's used on the Model T. They are from left to right the Kingston L, Kingston L2 and the Kingston L4. They are still very easy to find. I sold these on Ebay a few weeks ago and received $65 for all three!

http://i93.photobucket.com/albums/l46/mpawelek/KingstonsFinal.jpg

I don't think its Model T Simon. . . due to the lack of the 2 holes in the fuel/air adjustment needle for driver firewall actuation. I think its for a stationary engine. Several years ago I bought a brass Holley G carburetor at Chickasha with a similar knurled adjustment. The intake was 90 degrees from the outflow into the manifold unlike the 180 degree on ALL Model T carbs. Bought it just because it looked neat . .

There's another Kingston similar to the one in your RH photo. I have one on my 26 Fordor.