On Sun, 28 Oct 2012 20:55:47 -0000, "Robin" wrote:

Parker Knoll as were are no more

Surprised me a I know someone who bought PK a year or so back. And
http://www.parkerknoll.co.uk/ claim the heritage. Do they deny all
knowledge of old stuff or have they gone out of business?

And FWIW the photo made me wonder if it was definitely a castor rather
than a fixed foot.

I missed the beginning of this so apologies if I'm repeating someone
else's comments. I had a similar problem identifying then obtaining
castors for a set of timpani but found what I needed at
www.castors-online.co.uk

Nick