Here is a genuine original Harley-Davidson Linkert Carburetor that appears to have been modified for racing. I do not see any writing or casting letters or numbers on it at all.
I think that it is a MR3 or MR4??? Have seen these on the Knucklehead Flathead WR Panhead Sportster K-Model KR models???Please double check to be certain that this will fit your exact model and exact year. Please view all 9 pictures. The item "Racing Linkert Carburetor MR3 MR4 Harley Davidson knucklehead flathead WR KR" is in sale since Saturday, August 1, 2020. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Antique, Vintage, Historic". The seller is "sixharleys" and is located in Lone Rock, Wisconsin.
This item can be shipped worldwide.