You will often find the serial number on the bottom ring or, in some cases, on a small plate located inside the housing (accessible by unscrewing the bottom bell).
directly with photos and the serial number. They can often provide the exact shipping month and year. Third-Party Counterfeit Inspection check neumann serial number
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| Serial Range | Era | Notes | | :--- | :--- | :--- | | | Pre-1950 | Very early prototypes. Extremely rare. | | 1xxx – 15xxx | 1950 – 1959 | The "Golden Era." Nickel finish U47s, M49s, and early KM53/54s. | | 16xxx – 30xxx | 1960 – 1965 | Transition from Nickel to Gunmetal Grey finishes. | | 30xxx – 50xxx | 1965 – 1970 | Introduction of the U67 and U87. Most have the "small badge" logo. | | 50xxx – 80xxx | 1970 – 1975 | Introduction of the "Iys" badge (horizontal line under the script). | | 80xxx – 120xxx | 1975 – 1985 | Later U87 models, early TLM versions. | | 120xxx+ | 1985 – Present | Modern production standards. | You will often find the serial number on