Share your favorites on Show & Tell

Need help with mold number on Ball Perfect Mason jar

In Bottles > Fruit Jars > Show & Tell.
Tlsweat7203's likes1 of 3who made this wonderful bottle?Vintage Buttons
Love it
Like it

Tlsweat7203Tlsweat7203 likes this.
aghcollectaghcollect loves this.
Add to collection

    Please create an account, or Log in here

    If you don't have an account, create one here.

    Create a Show & TellReport as inappropriate

    Posted 5 years ago

    (1 item)

    Hi, I have been searching to no avail as to what the number is on the bottom of my blue Perfect Mason jar with zinc lid, it appears to be a backward 6 underscored, or backward 9 over scored but it has a much longer tail and doesn't look at all like the 6's or 9's I've seen. Could someone give me an idea as to what it is?

    Mystery Solved
    Fruit Jars
    See all
    Stunning Mason 1858 Patent Cross Jar Citron Masons
    Stunning Mason 1858 Patent Cross Ja...
    Antique Amber Glass GLOBE MASON JAR #12 Fruit Mason Jar w/ Glass Lid 1886
    Antique Amber Glass GLOBE MASON JAR...
    Antique Blue Mason Jar
    Antique Blue Mason Jar...
    #1013 FLACCUS BROS STEERS HEADS Fruit Jar~100% Correct~Embossed Lid~PT~Excellent
    Stunning Mason 1858 Patent Cross Jar Citron Masons
    Stunning Mason 1858 Patent Cross Ja...
    See all


    1. aghcollect aghcollect, 5 years ago
      The number is a mold number - the underscore is to differentiate between a nine and a six - yours is a six. Normally these appear from looking at the base, but yours is backwards and was probably eventually changed to the correct mold configuration. - The Ball logo was used between 1923 and 1933 as shown here on my logo link;
      And picture 3 of my link here is what a glass mold machine looked like, hence the different mold numbers on the jar bases
    2. indalay1746, 5 years ago
      Thank you for your help
    3. hartballjr, 3 years ago
      what if there is no number at all
    4. lwjars, 2 years ago
      hartballjr: Each manufacturer had their own system of mold marks to identify which mold the jar was made in. Some had no marks on the base.

    Want to post a comment?

    Create an account or login in order to post a comment.