I see metal hubcaps so it’s POSSIBLE that the original owner got a replacement lid a couple of years later? Either way, let’s have a look at those sockets up close please. The socket’s feet will tell the tale. Metal hubcaps we’re done by early 1968.
HOLY GRAILS: 1950s era Black or Custom finish 18.5 or 22.5 Kettle, Brown Go Anywhere grill.