Check Neumann Serial Number
Fakes often miss, misplace, or poorly engrave serial numbers. On counterfeit U87s, the font is wrong or the number is purely numeric with no letter.
Often found under the endcap at the base of the connector. check neumann serial number
If you have checked the Neumann database, emailed support, and verified the location, but the number is invalid: Fakes often miss, misplace, or poorly engrave serial numbers