old WWII vintage technical book aircraft & airplane instruments 1stw/illustrations

Old World War Two vintage pilot or mechanic's technical book on airplane and aircraft instruments. Aircraft Instruments by George Ellis Irvin and published by McGraw-Hill Book Company.

This technical book is copyright 1941 and this is a first edition. It has 506 pages with lots of photos, illustrations, tables, diagrams and schematics, including a large fly-out schematic drawing.

This is in nice vintage condition with wear and age.