Appliance was the seller.
Here is a link to (2) NOS ones, drilled for Chevrolet, but will give you an idea of what you have.
https://www.ebay.com/itm/Nos-Vintage-Appliance-Mag-Wheels-Rims-15-7-GM-4-3-4-Chevrolet-Pontiac-Olds/112479125356?hash=item1a30473f6c:g:dZIAAOSw0TxZZk9n