They seem to have changed the lenses when they started using the marker lamps as turn signals. The lenses used for turn signals have a depressed section in the center, the ones used as parking lamps until 50 have a domed shape as shown in the pic.
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Brian Howard AMCA#5866 -
Do these have a Guide number on them? I think I have a pair I've been dragging around for the past 35 years, I may have just stumbled onto what they might be.....Comment
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The later ones used as turn signal lenses and running lights after about 50 or so are marked around the outside edge "GUIDE" and "DH-49". I don't believe the earlier ones are marked but I could be wrong.Brian Howard AMCA#5866Comment
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