Wilson Trophy 1949, then called The National Firefly Class North-West Team Race Championship.

 

Sailing Instruction in 1949 contemplated a competition based on knock out stages between 17 teams, 6 of which are still team racing at the Wilson Trophy today.

Note the Sailing instructions are rather more compact in 1949 then they are today,  although it is not a given then they were more read then than today…

Also of note, that in 1949 West Kirby was part of Cheshire.