Anyone know what kind of jar this is? It's twenty ounces and measures 6 1/2 by 2 1/4 inches. It's embossed on the bottom 3046 and a illegible mark that looks like an x.
Thanks! That got my search oriented correctly. Looks like it's a mustard or persevere jar that had a tin closure with a metal spring. Not sure who made it though. The Kearns jars are octogons.
It helped. The British jar guess led me to search for English chow jars and that led me to this catalog. They made a varient of it. I assume other American companies did too. I actually found a box of those spring clips in a shed in South Texas. I didn't buy them though. I wonder if farmers reused them as canning jars.