Here’s a small treasure I found a few month ago at my parents place. Two vintage engineering books “Der neuzeitliche Maschienenbau” by Curt Hanfland. My grandpa bought them once. I guess there is no English version of those. I totally love this vintage engineering stuff. It’s so hard to imagine for me to work without the help of computers – or not even with a calculator. They cover simply everything I can imagine of. Especially the one of the two books which covers all the transportation stuff is great to waste some time. This book covers everything – from cars to motor cycles to trains …
They are offered on the internet for not so much money. I can really recommend them! Of course only if you understand German.