I've seen a lot of Champion X plugs, and finding one with a Ford script on it is pretty rare. Rodda shows the Ford script plug being used from early 1922 to the end of production, but if all nine million of those cars came with them I'd expect to find more of them among the Champion X plugs I see today. Anybody know of a source that explains or accounts for the scarcity of script plugs?
I know I find them, but I hang onto them more than the regular X plugs. Is that why we don't see as many changing hands?
I agree it seems we would see them at least as often as the non-script type, but sure don't seem to do we?
Was the script plug used exclusively from 22 on? Or were both types being used simultaneously?
Was it only a factory item, then replacement plugs were non-script?
I just bought seven in one sale on Ebay.
I think the most common NOS champion X plugs are Ford script. You find them in 1930's era boxes most frequently. I bet Ford dealers carried them into the 1950's.
Below is a late 1930's - 1940's box. I bought a set of four at the Pumpkin Run swap meet outside Cincinnati a few years ago for $5. The seller had ruined a nice center door attempting to make a hot rod, then gave up and was selling all the parts and the car:
Below is an earlier one with the ribbed / brass top Ford script X plug, perhaps late 1920's - early 1930's:
This is the earliest Champion X packaging, through about 1923 for the straight sided X plug:
Here is the refill packaging for the earliest Champion X plugs:
Hmmmm... My experience has been the opposite. Lots of X, mighty few Ford script. Of course most of mine are used, not NOS. Maybe that's what makes the difference.
I assume that the factory and the dealer plugs were "Champion Ford" but that other retailers had the "Champion X" plugs. I've only seen aftermarket ads with "Champion X" but I'm not saying that is all there was.
That is what I was thinking. The Ford script plugs came from Ford, the X variety came from all other suppliers. I see about 10 X plugs for every script plug.
That is my working theory...at this time.