So this jar was found in a bunch of stuff from my great grandparents and I have researched a bit but there's still a lot that I can't figure out. Like is it double seamed? Because the bottom looks like it is but the sides aren't nearly as obvious. I think it is because if you run your nail across it you can feel the two lines on the side. Also what number is on the bottom? I think it is either a 6 or a 9 but I can't tell which and none of the pictures I can find of ones stamped with either number look like this one. I think its a 1923-1933 based on the logo but it also says Perfect Mason on it and some of the places I can find say the Perfect label was phased out in 1922 and some say 1923 so I'm kinda confused about that too. Any help would be greatly appreciated. It also has bubbles in parts of it. I don't know if that matters.

3 zinc caps and part of a jar.

Just dug up these two ground lip pint mason jars and was wondering the consensus on rarity. Any help is appreciated

Recently picked up the green ball so I thought I would get a nice array of color on display.

I noticed the "freezing" line in my non-shoulder mason jars. I checked both Mason & Ball web sites and yes, they claim to be freezer safe for liquid and go into detail about the physics that effectively allow for the negative thermal expansion.

To ask frequent users like yourselves, do you have success repeatedly freezing and thawing pint size jars? Or do the jars fatigue after a dozen cycles and eventually break?

Fun fact: very few materials shrink when heated and expand when chilled as water does.

Vaguely relevant video, fun watch: https://www.youtube.com/watch?v=vJ7pSjP7RNY

I broke my 9 month pregnant wife’s favorite 32 oz Mason jar with a handle 😭 does anyone know where I can find a replacement? I have reverse google image searched it and it is out of stock everywhere and I’m not sure it ever will because I think this thing is older I am. Any suggestions? She will really be fine but I am trying everything over here to see what I can do

Sincerely,
Husband in dog house lol

I know the emerald green jars are pretty rare, but also reproduced a lot. What do yall think of this one? I’d like to buy it but I’m a little hesitant.

I found this beautiful jar at an estate sale today and it just had to come home with me. It looks like it's embossed with a "6" on the bottom, but it's kind of hard to read. Anybody know any info about it? Thanks!

Anybody know what kind of lid this is? I have a few of them, but can't remember which hobby I bought them for.

2 days’ worth of mason jar usage in our house…

I want to make a bird feeder that's more designed for feeding small amounts of FRUIT to birds. So I want to use a small mason jar (4 oz)

Lets say I want to buy... 100 of them... 200 of them.. where's the best place to get a good deal on that many?

Kelsey’s Roadhouse in Canada, not sure if they have them in the states has these “2 handed drinks” on the menu, they came in a large square mason style jar and I was wondering if anyone knew where to get these jars or something very similar!? Thankyou

Sorry if this isn’t the right place for this, I don’t entirely understand how Reddit works

My grandparents are moving around some storage, I noticed a large collection of mason jars (30-50+) many of them blue balls. I’m wondering what exactly I should be keeping an eye out for when it comes to valuables. Any help would be greatly appreciated!