I don't really see a question here, but I'll assume age and value is what you want to know. Jar on the left dates from 1923 to 1933 and the softer square one on the right is from 1933 to 1962. They're both still perfectly good for home canning - and that's where their value lies. -Tammy
Yes they are, it's just from a collector of jars and such there isn't a lot of interest. They can be nice decoration for flowers or for keeping marbles. buttons and such. I see them reused for all kinds of things. Most modern jars like Mayo still have threads that match but the plastic now doesn't appeal to me. The new canning jar lids should do fine and are often sold separately.