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Item Type: Concertina
| Summary | Labels and Serial Numbers | End Frets | Fingering System | Straps and Holding Devices | Fret Baffle | Action Board | Reeds and Reed Pans | Bellows | Case and Other |
Fingering System
Fingering System: 56-Key "English" Tenor-treble
Fingering System Site Links: Wheatstone 56-Key "English" Tenor-treble
Key/Buttons Summary: 56 Keys, made up of: 28 RH, 28 LH, plus one RH air-key.
Keys/Buttons Quantity: 56 Keys
Keys/Buttons Material: Dome-Nickel-plated keys with wooden cores and integral pegs. The nickel caps have two crimped indentations below fret-level to secure them to their wooden cores.
Keys/Buttons Labelling: None
Keys/Buttons Bushing: Dark felt bushing to all keys, the bushings fixed to a large scalloped-shape softwood "Bushing Board" pinned across the key area beneath the frets, the sheet bearing the "548" Batch Number.
Keys/Buttons Base Mounting: Standard peg, single very thick dark felt washer per key.
Air Button method: Single RH air Button, identical in design to note keys, but operating a large air valve pallet.
Effects Buttons: None
