Rare Tonka Porthole Van 1979 HTF Black W/ Stripes 5" Long Made in USA

This vintage Tonka van has the stickers intact but rust on the roof and a little at top of body where roof meets side.  The sticker on one side is very slightly lifted at end. Definitely played with a lot. It still rolls nicely.  I see others listed as made in Hong Kong but this clearly has a stamp that says made in USA. It measures 5" long and 2.5" tall. Please see all photos for true condition.