PBY Catalina Erection and Maintenance Manual - Canada TBM Avenger This has also been observed

This has also been observed on the Canadian Avro CF-100 Canuck (see cockpit image)

the needle points left/right

as used in the US Army Air Force heavy bomber B-24 Liberator

it was the engine used in the WWII-era US Army Air Force B-17 Flying Fortress Bomber and C-47 Skytrain

The decals are in mint condition

PBY Catalina Erection and Maintenance Manual - Canada TBM Avenger This has also been observedThis is an original copy of the October 1941 Erection and Maintenance Instruction Manual for the Consolidated Aircraft Corporations Model 28, also known as the PBY Catalina patrol bomber used during WWII. This version was written specifically for use by the armed forces of Canada for the version known as the "Canso". This 8x11 inch, 335 page manual contains photocopied typewritten text, illustrations, and photographs.