I was looking at my 66 300's fender tag today and saw two codes I never noticed before: w1 and y7. I never realized they were there because they are reverse stamped. Was this an "oops" at the factory i.e. they forgot to add these two options until the plate was embossed? Attached it a pic of the tag and build sheet. I felt like an archeologist when I extracted that sheet from under the rear seat fill panel. Sheesh!
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