German lacquer and DMM cutting engineer. Can be identified by a small Hü signature in runouts, mostly in conjunction with WMME Alsdorf.
It may appear as Hu, Hū, Hú, Hѝ (in some rare cases it may look like 'HG').

Please use Lacquer Cut At - Record Service Alsdorf & Lacquer Cut By - Ludwig Hümmler with ANV Hü (until March of 1989)
Please use Mastered At - Record Service Alsdorf & Direct Metal Mastering By - Ludwig Hümmler with ANV Hü (April 1989 - 1991)
Please use Mastered At - WMME Alsdorf & Direct Metal Mastering By - Ludwig Hümmler with ANV Hü (1991 - 1998)