This is an example of how a Chevrolet Dealership received these plates.
This is a 1971 slogan NOS in the original shipping box.
They came 6 plates to a box,seperated with onion sheets.
That box item No. is referenced in the 1971 Chevrolet Merchandising Catalog,along with a picture of them.
I have cartons of these and all are the same 1971 slogan,all post marked within the 1971 model year in some cases.
1971 was the only year they used that particular item no. to reference this plate design.
The years before & after used a different item no.,design & box.