Hi,  I was referred to your site by John Tuttle.   I am restoring
a Welte-Mignon reproducing piano and am in need of a vacuum pump.
I'm attaching a diagram that John sent me.  If you can help I'd
greatly appreciate it.

Thanks,
Les Lutz

 [   Welte-Mignon pump
 [ http://www.mmdigest.com/Attachments/17/10/30/171030_124340_MOTOR01.jpg
 
 [   Welte-Mignon pump
 [ http://www.mmdigest.com/Attachments/17/10/30/171030_124340_20130403210800_00004.jpg