, date unknown
Viola: 85120
Labeled, "Johann Gottlieb Hoyer, violinmacher in Wittenbach."
Illustrated in "Klingenthaler Geigenbau", 2016, p. 120 - 121 & p. 169.
Length of back: 39.4 cm
Upper bouts: 18.4 cm
Middle bouts: 12.6 cm
Lower bouts: 22.9 cm