Between 1952 and 1956 CWC built bikes had serial numbers which have a Cw suffix that begins with two digits that presumably represents the year of manufacture, in this case, 53 = 1953. That is an appropriate date for the frame pictured as the rear dropouts date the bike to between 1950 and 1953-54.
This is one of my favorite frames, I really like the arch of the seat stays and the flat bottom on the down tube.
I always thought it would cool to give it a 'flat foot' mod by relocating the BB forward, kinda like this:
In any case, can't waitto see what you do with it.
There is what looks like a skiptooth roadmaster in a yard that i want to check out, but I want to have my facts straight before I do. Where is the serial # located?