Trimotor Book of Instruction

 

Here's a lovely instruction manual for the Ford Trimotor.

 Reader and frequent commenter Dave sent this in, his grandfather used to work on Ford aircraft back in the day and Dave still has this Book of Instruction of the Ford All Metal Monoplane that he was given when he took a training course on the aircraft. It had his name H. A. Dugan, embossed on the cover. Here are a few pictures of the book.

Thanks, Dave!