Kerr 'Self Sealing' - U.S. Pat. Off' Square Wide Mouth Pint - Mason Jar Merchant

Kerr 'Self Sealing' - U.S. Pat. Off' Square Wide Mouth Pint - Mason Jar Merchant

Kerr 'Self Sealing' Wide Mouth Quart Wide mouth jars, How to can tomatoes, Vintage mason jars

Kerr Self Sealing Mason Jar

Kerr 'Self Sealing' - Reg. U.S. Pat. Off.' Square Wide Mouth Quart - Mason Jar Merchant

Kerr Self Sealing

Kerr Self Sealing

Kerr Vintage Regular Mouth Fruity Bulb - Tall Version

Kerr 'Self Sealing' Square Regular Mouth Pint - Mason Jar Merchant

LOT OF 12 Kerr Self Sealing Wide Mouth Mason Jars with Lids $49.99 - PicClick

Produced between 1955-1965 these square squatty jars are a unique treasure. The exact production dates for vintage Kerr jars can be found on the rim

Kerr 'Self Sealing' - U.S. Pat. Off' Square Wide Mouth Pint

Trade Mark Jar

Kerr Self Sealing