Hello All -- Does anyone have any diagrams or photos of the
cam-operated six-bellows Duo-Art 'steamboat' pump?  I have various
Duo-Art manuals, Michael Kitner's Duo-Art rebuild notes, Reblitz,
and so on, but have as yet been unable to locate a drawing or drawings
of one of these.  (I appreciate that there may be design variations.)
Any assistance appreciated.

Many thanks and best wishes,
Andrew Barnes,
UK