Double Safety Canning Jar Value Guide

The Double Safety Canning Jar is a highly collectible piece of early 20th-century kitchenware manufactured for Smalley, Kivlan & Onthank of Boston. Its distinctive wire-bale closure and embossed script represent a pivotal era in American food preservation technology.

What affects the value of Double Safety Canning Jar?

• Condition of the glass, specifically looking for chips or cracks around the rim and base.
• The presence and operational state of the original steel wire-bale closure.
• Clarity and color of the glass, with typical examples valued between $35 and $40.
• Completeness of the unit, including the original matching glass lid required for the 'Double Safety' seal.

How to Identify Double Safety Canning Jar?

• Look for the specific 'Double Safety' branding embossed in script on the glass body.
• Verify the presence of the original glass lid designed to work with the metal clamp system.
• Confirm the pint-sized dimensions and the authentic steel wire-bale assembly.
• Check for the manufacturing origin associated with Smalley, Kivlan & Onthank of Boston, Massachusetts.

History of Double Safety Canning Jar

Manufactured for Smalley, Kivlan & Onthank of Boston, Massachusetts, these jars were part of the early 20th-century wave of wire-bale food preservation technology. The 'Double Safety' branding referred to the secure sealing mechanism that utilized both a glass lid and a metal clamp to ensure an airtight seal during the canning process.