A5: Anglo concertina

Keys: 34 keys + C drone + air button, made from German silver
Ends: flat ends made from German silver, rosewood, ebony or cocobolo
Bellows: 7-fold leather bellows, goatskin in black, other colours on request
Tuning: C/G, also available C#/G#, Bb/F
Keyboard layout: modified Jeffries system
Levers: riveted, for fast action
Reeds: single steel reeds in brass frames
Reed pan construction: reed chambers are arranged in a circle
Size: diameter 160 mm (6.3 inch)
Description: crisp tone, fast action