Is it generally assumed that leather primary pouches were applied at
the factory with pouching jigs, such as we use today with or without
a suction tube, to hold and form the leather to the contour of the jig?

But is this the way it was done in the old days?  Are there any factory
photos showing this process?  Or could it be that the round leather
pouches were glued flat to the pouch board and then stretched to form
the dip?

I once releathered a primary pouchboard for a Wilcox & White Angelus
player where large sheets and pieces of leather had been glued down and
the dip formed by stretching.  When I re-pouched it, I used individual
round punchings but stretched them for the dip.  The dip is still
holding years later.  I don't think there was any other way to do it
with the sheet method.  Certainly the flat glue and dip method would be
a lot faster.  Thoughts?

Thanks,
Dave Krall