and even more maroon

Many 356 owners have parts manuals to help them select parts for the work they do on their beloved car.  Some folks use virtual parts information, some original books, some copies.  Workshop manuals are of great help too.
Once in a while there is a part for sale that is clearly a part for a 356 (616) engine, but the part number can't be found in any of the parts manuals- even if it was produced during 356 production.  Confused?  Well is is possible.  Fellow enthusiast, how can that be?
PORSCHE made the 616 type engine in different configurations.  Most went into cars, but others went into airplanes, boats, and some went into industrial applications such as pumps, generators and more.
The basics of the type 616 industrial motors were much the same as for the cars, but the platform had changes to accommodate the different mountings, environment, running speeds and torque.  Some parts were the same, others were different.  PORSCHE used the same format for parts manuals for these engines, and I am fortunate enough to have acquired a pristine copy of one of these manuals.
​See below for photos.  There is one significant change with this binder of parts.  Same format/look EXCEPT the size.  To demonstrate the difference, I pulled the new book out on the bookshelf.  The height of this binder is the same as the B and C parts manuals and the binder is otherwise proportional to the other much taller 4 ring binders.