To date, I've collected 3 early 912 driver's manuals in an attempt to understand how the dash and engine features evolved.
I'm hoping to get other 912 owners to contribute to fill in the blanks and better understand how the features evolved based on the date of manufacture and the manual edition number.
Let me throw out my photos and see what the response is... I'd love to see these two photos from as many unique manual editions over the entire '65 to '69 production span as we can get.
Here's the photos from my earliest driver's manual, edition III/65:
