Inspired by Jim Smith-Wright’s creations on his New Street layout, I decided to try my hand at scratch building my own overhead line mast. The first baseboard on Romford contains three such masts; one four-track span and two double-track spans located on the main overbridges. I decided to start with the more complex four track span. Fortunately, the Mark 1 Great Eastern masts are a lot simpler construction than the WCML versions on New Street.   I started off by reviewing archive photo