Preliminary identification
Photo reference
1 uploaded photo
Overview
This is a heavy-duty, commercial-grade Bunn G9 Series dual-hopper precision coffee bean grinder housed in a rugged stainless steel chassis. Designed for high-volume environments, it features two independent hoppers to easily switch between different bean varieties, such as regular and decaf.
Story
In 1957, George Bunn revolutionized coffee brewing by inventing the flat-bottom paper coffee filter. This dual-hopper G9 machine became the tireless workhorse of American diners, fueling millions of late-night road trips and early morning shifts.
Maker / Origin
The Bunn-O-Matic Corporation, founded by George Bunn in Springfield, Illinois, is a legendary name in the beverage industry. Bunn pioneered the commercial drip-brew coffee machine and has remained a family-owned, leading innovator in beverage dispensing equipment for over six decades.
Condition & Value
The grinder shows signs of heavy commercial use, including adhesive residue, worn labeling on the control panel, and typical surface scratching on the stainless steel. The hopper lids and knobs appear intact, but the unit is dusty and requires a deep cleaning and testing.
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.