1940s Pocket Amalgamated Engineering Union book. RULES Part 1.

Small paperback reference book, in good condition. Some sun fading to the cover, no loose or curled pages. There is a small rip to the bottom of the spine, please see photos.  

Dimensions:
Width: 52mm (2”)
Depth: 11mm (1/2”)
Height: 103mm (4”)
Weight: 141g
Pagination: 178pp