Berlin black

a black varnish, drying with almost a dead surface; - used for coating the better kinds of ironware.
See under Berlin.

See also: Berlin, Black

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
The soldiers affectionately call Berlin Black "The Container Man." Black is normally found in the post's container area.