Malcolm Davies

British mastering and lacquer cutting engineer, notably for mastering many of The Beatles' original releases.

He started cutting at Apple Studios, where he worked for seven years.
He has worked at PRT Studios) since 1967.
He died in 2015.

At Pye, his cuts can be recognized by △M, ♢M, ✳M in the runouts (attention: until 1966 these symbols were used by Derek Moore (3)).
In later years, he used the initials MD.