#85 - Operating instructions for a Philips N2202 Portable Cassette Recorder
, 1970-2. I love the minimal cover design with the strong, block of orange - it's bold and functional as are the inner pages.
These gorgeous diagrams (below) are very detailed and printed on a fold out flap that can be veiwed at the same time as the written instructions.
The contents page is also bold and bright, identifying each chapter of the manual with a band of colour that corresponding to a tab down the right hand side of the pages throughout.
Unfortunately I have no idea who designed this instruction manual, but I suspect it was an in-house designer at Philips and was created to their style guide. If anyone does know the designers, please let me know and I'll post it up.