This is a great find. This book contains specs, performance, pricing and pics of the Learstar aircraft, also known as the Lockheed Model 18 Lodestar. 

I cannot find a date for this book, but I think it is late 40s or early 50s. It is in good condition, but the clear plastic sleeve has shrunk a bit, curling the cover page at the edge. 

The rest is great. 

16 pages of text, plus 19 full page black and white photos. Specifications and prices included for the planes.

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