chart floating around Facebook that shows Ball canning jars logos over the years. I thought it would be fun to see when some of my jars were from. Based on that chart, it looks like the jars I have sitting on the counter waiting for me to decide what to do with because they are too chipped for canning were made sometime between 1923 and 1933! The jars I borrowed from my mom and a few of mine, as demonstrated by the middle rubbing, were probably made in my lifetime, sometime since 1975, as evidenced by the registered trademark symbol. Most of my jars were from sometime between 1960 and 1975 though! I guess some canning granny stopped canning or something and that's how I got them off Freecycle, because they've clearly been around the block a few times!
I didn't go through all my jars, since I didn't want to dig them all out, so I might find jars from other eras as we eat up our homecanned goodies. I'll definitely be comparing them to this chart:
So here's the challenge: If you have any canning jars around, check them out and see when they are from. Even if you don't, but know someone else that does can, print the chart out and take it with you to see what part of history they're canning from. Either do a crayon rubbing like I did and post it somewhere on the internet to share and post a link, or just post the dates you have as a comment, but I really hope to see lots of rubbings so I can be more connected to that piece of history as well.