Darin, thanks for the info. (Apologies to whoever owns this lens for my assuming it's a faked/altered attempt at a "collectable".)
FWIW, I have a 3x4 Anniversary Speed Graphic that has a 127mm f4.7 Ektar with a serial number/date of EO693 in a synched Supermatic (X) shutter. While it does not have the circled-L "lumenized" logo that Kodak later used on coated Ektars, mine does appear to be coated. (Slightly rainbowish tinge when looking into the front element.)
Wonder if the lens in Dan's photo is coated?
As the date code is from 1946, there must have been a huge surge in post-WWII manufacturing: perhaps to meet the sales demand, Kodak might have rebadged some old folding camera 127mm f6.3 lenses for use as sales demonstrater models?