dave iam aware from other posts that waynes neon clocks sells replacement lenses for any size clock really, but i honestly doubt that they are reverse painted glass or he wouldnt be in business to long. the logo might not be on the front of the glass but that still does not make it reverse painted, it would be a reverse silkscreen logo. And with you thinking to begin with that the clock was a fantasy piece and its not and myself knowing my clock is proper 1940s all original champion spark plugs clock please tell me what colors the lens should be did champion change there logo and colors around the 1940s? just a little confused on your whole post really what year do you think the clocks are that have those colors???