Vintage Koken Barber Chair Serial Number List ^hot^ Today

: Tilt the chair to see the underside of the main seat plate. The base pedestal

Why? Unlike firearm manufacturers who kept meticulous, surviving logs for liability reasons, Koken was a supply company. While they stamped serial numbers on their chairs (usually on the hydraulic pump housing or the base plate), the original factory ledgers have been lost, destroyed, or are locked in private collections that have not been digitized. vintage koken barber chair serial number list

Look near the bottom edge of the vertical column, where it meets the floor plate. : Tilt the chair to see the underside of the main seat plate

) molded into the iron are part identifiers, not unique serial numbers. Approximate Serial Number Dating List The following ranges are widely accepted by appraisers at JustAnswer as reliable benchmarks for dating hydraulic models: Serial Number Range Estimated Production Era Key Era Traits c. 1881 – 1884 Earliest reclining-only models 1,000 – 9,999 c. 1885 – 1888 Swivel and reclining patents introduced 10,000 – 25,000 c. 1895 – 1905 Early hydraulic "one-lever" models 25,001 – 50,000 c. 1906 – 1915 Elaborate Victorian oak/mahogany frames 50,001 – 85,000 c. 1916 – 1925 Introduction of porcelain and nickel plating 85,001 – 125,000 c. 1926 – 1935 Art Deco influences; rounded backs 125,001 – 175,000 c. 1936 – 1945 Streamlined designs; pre-war production 175,001 – 225,000 c. 1946 – 1955 Post-war, mid-century modern styling 225,001 and higher c. 1956 – 1960s Final production before the 1969 Takara buyout Collector's Evaluation Tips Determine Koken Chair Age by Serial Number - Expert Guide While they stamped serial numbers on their chairs

) on the footrest, but these are often part numbers rather than unique serials JustAnswer Key Dating Features

While exact year-by-year factory records are rare, experts and collectors use the following approximate ranges to date Koken chairs: Serial Number Range Estimated Production Era Key Design Characteristics c. 1895 – 1905