| Serial Number (Approx.) | Latest Patent Date / Model | Estimated Era | Key Features | | :--- | :--- | :--- | :--- | | | Oct 23, 1900 | 1900 - 1905 | Bicycle seat style, cast iron, very rare. | | 12,000 - 20,000 | June 9, 1908 | 1908 - 1915 | High back, ornate porcelain base, footrests with coin trim. | | 45,000+ | Aug 12, 1919 | 1920s | Heavy wood arms, "Koken" cast into the iron back plate. | | Varies (Model 11/12) | 1920s - 1930s | 1920s - 1930s | Distinctive flat armrests, single porcelain footrest. | | High 5-Digits | 1940s Patents | Late 30s - 40s | Transition to "President" model, streamlined metal. | | 6-Digits | Mid-Century | 1950s+ | Thick leatherette, more plastic components, "Imperial" styling. |
For barber enthusiasts and collectors, vintage Koken barber chairs are highly sought after for their exceptional craftsmanship, durability, and nostalgic appeal. Koken, a renowned manufacturer of barber chairs, has been producing high-quality chairs since the late 19th century. If you're a collector or enthusiast looking to identify and date your vintage Koken barber chair, understanding the serial number system is crucial. In this article, we'll provide a comprehensive guide to the vintage Koken barber chair serial number list, helping you to identify and appreciate your chair's history. vintage koken barber chair serial number list
: Some later models (circa 1920s–1930s) featured a small metal tag riveted to the frame under the seat or on the back of the footrest. | Serial Number (Approx