Hi all,  Can anyone give me any information about the pedal only
half-lung Duo-Art, style 600P, particularly what distinguishes the
600P from other models of the type?

Also, my Stroud of this model is No. 95902.  Can anyone hazard a guess
as to it's year of manufacture, as the dates in Pierce's are said to be
quite inaccurate?

Regards,
Robert Perry
Auckland, NZ