The seller responded quickly and agreed to take them back. Refund of $250 will be sent via PayPal when he gets the grilles back. I shipped them back today and expect all will be OK. Look under completed auctions for the seller info, etc. Compare the pictures he used for auction to the ones I took showing the poor workmanship of the welds and the squished end of the one grille.
http://www.ebay.com/itm/320806458335...WNX:IT&vxp=mtr
So, I'm still looking for a pair of decent grilles for my '64.