Peter B. (Peter B. Pedersen) was a well-known Danish instrument builder in Copenhagen during the 20th century. He originally worked in Just Poulsen's workshop before starting his own business. His hand-built mandolin banjos and tenor banjos are sought-after collectors' items for their unique design and historical connection to Danish folk music. Facebook Danish Banjo enthusiasts +2 The instruments sometimes appear at auction houses, and historical sales have been made via Lauritz.com and Auktion.se. For newer ads and discussions, keep an eye on Danish DBA.dk or search the Facebook groups for Danish Banjo Enthusiasts and Peter B. Copenhagen.