Collection Abbreviation D-Ilshofen: Thalheimer Accession 456/194 Maker Abbreviation Otto Lowest Note c' Size tenor Year Made 1940 Pitch 435 Pieces 3 Length 640 Keys 2 Material Body maple Material Mounts 2 nickel silver ferrules Material Keys nickel silver Notes Distributor's mark: C.A. Wunderlich / Siebenbrunn (Vgtl.) Harlan fingering One of the keys is for the lowermost finger-hole; the other, operated by the little finger of the uppermost hand, opens a hole between fingerholes 4 and 5 to give a b♮'. This construction is to be found in instruments built by Otto for Hermann J. Moeck in Celle after 1945. These keys were subsequently adopted by other workshops. Thalheimer (2013: 127)