Because a lot of you probably haven't seen one of these. It is an unmarked Kingston, probably used mostly on the 1906 NRS Fords.
Short explanation. First, I didn't notice before I took the photo I had put the air valve on upside down for the last photo.
Air valve sets down over the needle and orifice. Starting, it is closed to "choke" the mixture. After starting it pulls up to allow more air. A spring helps hold it down. The only real adjustment is the fuel supply needle which opens in the orifice in the lower section.
The needle and seat are interesting. The needle is weighted and at rest closes the fuel inlet. As the float lowers it pulls the needle off of the seat for fuel flow. Simple and works well.
Not much else to it except this is about the only one I have ever seen without that support arm broken and brazed.
Cool Carb. Just got it.
That IS a very cool carb and I myself have never seen one with my own eyes.
Actually that carb is for 1907. Not to be picky but the earlier, 06 variety did not have the needle alignment arm. Nice carburetor, Stan.
Oh yes, its a Holley. The 07 Kingstons had a air valve.
Kinda like a Schebler. Don't know why I don't think of these things all at once. ;^)
I'll stop now.
Thanks, the parts book for n r s does not identify the maker, the guy I bought it from said it was a Kingston.
You have a valuable carb there Stan
Hope so, always broke need money.
Richard is correct, it's a Holley. The Kingston had a side facing intake port.
Thanks for the info. It sold almost immediately to a guy who knew what it was and had been looking for one.
Have one just like it on my 1907 Model R.