re vintage flutes

In search of vintage simple system 5 key marching band flutes made by Henry Potter 36 - 38 West St, Charing X Road, London.
I am looking to obtain the Eb piccolo, Bb flute, F Flute, Eb bass flute and Bb bass flute, these have a unicorn head with the name HY Potter and the above address on the flutes. any help would be much appreciated.

Derek

Hi. You might keep an eye out at Vintage Instruments in Philadelphia. They get some interesting stuff. They don’t appear to have what you’re looking for at the moment, but they might someday!

http://www.vintage-instruments.com/navigate/catidx4.htm

Heather M.