Preliminary identification
Photo reference
4 uploaded photos
Overview
A pair of double-walled insulated plastic steins commemorating the College Football Hall of Fame. One features a classic illustration of the original Kings Island-era building, while the other showcases a whimsical 'CFHF' mascot in a blue and white graphic style.
Story
The College Football Hall of Fame opened its doors at Kings Island, Ohio, in 1978, a location these mugs celebrate. Before moving to South Bend and later Atlanta, this was the shrine where gridiron legends were first immortalized.
Maker / Origin
Thermo-Serv became a staple of American mid-century and retro kitchens, known for their 'ultrasonic welding' that kept drinks cold without condensation. Based in Anoka, Minnesota, they were the go-to manufacturer for high-quality corporate and souvenir drinkware throughout the 70s and 80s.
Condition & Value
The black mug appears in good vintage condition. The blue mug shows significant heat damage or 'dishwasher melt' on the bottom rim and base, which is common for these plastic items but reduces collector value. Condition issues on the blue mug's base reduce the pair's value by about 30%.
Full Research
Sold comps, value drivers, and venue guidance pulled from recent auction results.
Build on this identification
Layer in sold comps, value drivers, and venue guidance.
Comparable demand stays strongest where maker, originality, and venue confidence line up. Broader examples still trade, but the range tightens quickly when provenance, condition, or selling lane fit is missing.
Best Venue
Specialty auction or a focused dealer with buyers already in this lane.
Signed example with light edge wear and original frame.
Comparable format with stronger provenance and cleaner surface.
Smaller related piece with visible craquelure and trimmed margins.
Period match with softer condition and weaker subject matter.
Close market lane comp with similar material and presentation.