07/13/2026
Patent Date: Below the model number, the glass features the prominent raised lettering “Patented Feb 14, 1922” (often abbreviated as Feb 14,22).
• Era: This specific script placement and style indicate it was produced between the 1920s and late 1930s.
• Capacity: The “No. 40” model denotes a 4-quart (1-gallon) capacity jar.
