K. Gerhard Penzel Silver Pernambuco Cello Bow 4/4Karl Gerhard Penzel (1929 2017) was the son of bow maker Kurt Walter Penzel. He trained and worked in Erlbach under the direction of his great uncle E. M. Penzel before moving to Stuttgart. In 1974, he moved to Ostrach where his family continues its bow making tradition to this day. Stamp: K. Gerhard Penzel Shape: Round Wood: Pernambuco Mounting: Silver Full Mount Level: Advanced