head light len

Ed, attached is a photo which shows what I believe is an original headlight lens on a 1930 Model C sedan I owned from 1995 to 2006. I hope the resolution is good enough to be helpful.

ED, Running production changes of many parts for 1929 and 1930 Pierces make the judging at Meets a little difficult, however the 1929 late production cars no longer used the flat McKeelite lens and went to part number 733247, the flat twolite lens,(page 30 of parts book). The 1930 parts book clearly shows on page 55 that the same part number is shown for 1930. My green 5 passenger sedan is the lowest vin. numbered car in the roster for 1930 and has the flat twolite lens. Research has never come up with a date for the running change in 1930 to convex twolite lens part number 736988 however all later cars from 1930 have the convex lens. So… I guess you would have to say everyone is correct, and because we don’t judge 1930 by months of manufacture like they do Model A Fords the lower the vin. number, the earlier the date of manufacture, the more likely it left with flat lens. The lens interchange in the bezels without any problem. The 1930 parts book shows the lens for A,B,and C without any additional breakdown. I hope this helps answer the question. Karl

The Model C in the photo was thought to be a late June car.

Convex, Ed. As for right side up or upside down, I don’t know, Craig. It attended 4 PAS meets during the 10 years I owned it and no one ever commented on that. (And they did comment on other items that needed correcting!)