13883717

Wall Art and Photo Gifts from Mary Evans Picture Library

13883717

Mary Evans Picture Library makes available wonderful images created for people to enjoy over the centuries

Media ID 32335656

© Aviation Ancestry

VISUAL DESCRIPTION
The image is another piece of historical marketing material titled "Inside Information No.3," focusing on the Kelvin Two-Engine Synchroscope Type KB.300/01 instrument for aircrafts. This device provided pilots with visual indication of engine speed synchronization between two separate engines, which was crucial for maintaining optimal performance and safety in flight operations involving multi-engine aircrafts during that era.

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