NICE DAVE!
Those are very hard to find,and in that condition even more so.
That sign came out in the Fall of 65 and was intended for use through the '66 model year. It was part of a P&A display that included four of those signs (Cars, Trucks, Parts & Accessories), a clock and two sign boards with changeable inserts. The one in your pic looks nice...usually they're kinda rough,and fragile as an egg shell.
These were dated items,and meant to be disposed of once the following model year arrived.
Whatever you paid,it wasn't enough.
