50 000 000 Mark Braunkohlenwerke Borna

Braunkohlenwerke Borna AG was a lignite mining operation in Saxony, and like hundreds of German industrial firms in 1923, it was authorized to issue emergency currency — Notgeld — when the Reichsbank simply could not print fast enough to keep pace with hyperinflation. The 50 Million Mark face value places this note in the late summer or autumn of 1923, the period when denominations were escalating almost weekly and a note's purchasing power could halve between morning and afternoon.

J. J. Weber was a Leipzig publishing and printing house better known for illustrated journals than banknote production — exactly the kind of commercial printer that regional issuers were forced to turn to when specialist security printers were overwhelmed.