Kohlert System-3 oboe, sn 9775     11 pp

1. Page of bore measurements made by AHB about 1959. 1 p

2. Chart-recorder tracings, frs = 1077 Hz, made 8/2/72. They were paper- clipped into three groups:

3. Description of AHB's Kohlert System-3 oboe (from file card in AHB Instrument Collection), n.d. 1 p