
Here's a quote from page 12 of "Manchester Breweries of Times Gone By, Vol 2":
"The brewery's [Openshaw] included best mild and bitter, Grade A pale ale, Openshaw Stout and also a "C" Ale. "C" Ale seems to have been a local brew, the origin of which is uncertain. Groves and Whitnall of Salford became well known for their version of "C" Ale in the 1890s; it was discontinued during the last war but reintroduced in 1950. John Henry Lees of Moss Side also brewed a "C" Ale, as did Wilsons Brewery."
I've tried searching the interweb, but something like C Ale is a bastard to find. Any help would be much appreciated. Someone must still remember C Ale. It was still being brewed in the 1950's. That's easily within living memory.