Henry Y. Potter 5-Key,

This antique five-key band flute in F was built for the higher A=452.5 reference pitch common in 19th-century British military bands. With the headjoint extended approximately a quarter inch, it can be played at A=440, though it performs best at its original higher pitch. Features silver keys with flat, round touchpieces, newly padded. Keys include E♭ short F, G♯, B♭, and long C (as they would be named on a D flute), all functioning well. Nice, responsive playing instrument in overall good condition.

Have a listen to an identical flute here...

Henry Potter (1810-1876), son of Regimental Drum Major Samuel Potter, took over the family business Henry Potter & Co. after his father's death in 1836. The company, founded in 1810, was an official supplier to the British military and expanded significantly under Henry's leadership. Henry had a particular interest in flute-making and in 1848 entered into an agreement with John Clinton to produce Clinton's early system flute designs. The 30 Charing Cross address dates this instrument to approximately 1858-1895, when the company was based at that location.