Heinrich Lampe

German mastering and recording engineer at Carl Lindström A.-G. since 17 January 1916 until at least 1951.
His signature was a hand-etched combined HL that can be found on German shellac records. Known to have gone on recording expeditions in Siam, Serbia (1913?), Hong Kong (1925?), the Dutch East Indies (1928) and India (1935, 1936).