looking for adjustable piano chair

[PNOTNR@aol.com]

List,

I am trying to locate a source for an adjustable piano chair.  (This is the
low backed, flat seated chair with the adjusting clip that you pinch to
change the height)

I thought I had seen them in a supply catalog but can't find them now.  I've
written several suppliers and so far have only heard from those who DON'T
have them.

Please E-Mail me directly if you know who has them.  (I need two of them)
Thanks.

Gordon Large, RPT
Maine