Looking for Spinning Jennies

Trowbridge Museum is researching Hargreave's Spinning Jenny and believes that there are only two original machines still in existence. There were possibly 20,000 in use at one time  but they were soon made obsolete by mechanisation.

If you think you know of one please contact Dave Feathers at West Wilts U3A who is helping with the research - secretary@westwiltsu3a.org.uk
I think there is one  in MOSI in Manchester but it may not be an original.