I found this coal lid yesterday and cant find any info on it. Only markings is a 10 on the bottom. It measures 11 7/8 in across the sealing ring. I dont see any gating. The tabs around the sealing ring is what peaked my interest. One tab sticks out past the sealing ring. Any ideas? Thanks
http://i.imgur.com/aWxZfDg.jpg
http://i.imgur.com/FRIH8R0.jpg
http://i.imgur.com/SslW3rC.jpg
http://i.imgur.com/aWxZfDg.jpg
http://i.imgur.com/FRIH8R0.jpg
http://i.imgur.com/SslW3rC.jpg