Nice finds Winz!
I have one of these Grey with Red accents as well and if you look
really close at the front of the packaging just under the cutout lid rim on the left there should be a copyright date. Mine is printed as ©1981.
The old weber covers are awesome! Does anyone else have some oldies they want to share?
Recently I acquired this old beauty
It's in really great shape other than the top seam which needs to be re-stitched. Hoping to get that taken care of soon...