More maroon please!

Yes, I am at it again.  The binder below is a fun one and I learned something new about Porsche.  The binders were sent to dealerships for keeping of information that would be reviewed with the sales staff and for updates. The book is divided with nice looking tabs, and this particular binder comes to me with French language tabs.
Here's where I learned something.  Note that this book has an image in the front section showing the customers as King and Queen, and the lowly salesman showing them a 356- clearly a 356 era book.
But, then why, I thought, would there be a tab for Porsche Aviation?  I knew of the Mooney aircraft in the 80's, but this binder is from the late 1950's.
A little research, and I found out that Porsche did provide engines based on the 4 cylinder 356 engine for aircraft.  Read the story about early aircraft engines here:  
Page loads a little slow.  Make sure to read down to the 678 engine (based on the 356).
Fun stuff!