Peanuts Thermos Value Guide

This vintage square yellow thermos is a quintessential piece of Charles Schulz's Peanuts merchandising history from the mid-to-late 20th century. Produced by the King-Seeley Thermos Co. in the USA, it served as a staple of American school life when paired with its matching lunchbox set.

What Is Peanuts Thermos Worth?

The typical price range for Peanuts Thermos is $18 - $20 based on recent sales. However, values can vary depending on the item's condition, rarity, and other factors such as:

• Condition of the Peanuts character graphics, as fading or scratches significantly impact the $18-$20 market value.
• Presence of the original matching screw-on cup lid and internal stopper.
• Overall cleanliness and lack of staining or odors within the polyurethane foam insulated interior.
• Structural integrity of the plastic, specifically looking for cracks or heat warping common in vintage school thermoses.

How to Identify Peanuts Thermos?

• Look for the distinct square shape and bright yellow plastic construction typical of the 1965-1975 era.
• Verify the King-Seeley Thermos Co. branding and 'Made in USA' stamp on the bottom of the vessel.
• Check for authentic Charles Schulz illustrations featuring Charlie Brown and Snoopy on the exterior panels.
• Confirm the presence of the original polyurethane foam insulation inside the plastic casing.

History of Peanuts Thermos

Produced during the mid-to-late 20th century, these thermoses were part of the massive merchandising wave of Charles Schulz's 'Peanuts' comic strip. Designed by the King-Seeley Thermos Co., this specific square yellow model was often sold as part of a matching lunchbox set, making it a staple of American school life for decades.