I'm looking at a 1970 Skylark convertible from a long distance with a buddy not familiar with Buicks giving me descriptions. I need help with the trim tag. It shows a code - TR 154 58 E I think the 58 is Harvest Gold, but what is the 154 and the E. The dash is tan and the seats and top are white. To me this seems like and odd color combo. I thought when you had white interior the dash and carpet was black. Any help appreciated.