Nice ride. I ended up selling my '80 Raleigh Marathon last summer, which was a 12 speed. A lot of guys are turning these into single speeds these days... It appears you have a large frame on that bike. My bike was a massive 28" frame!
It is a huge bike, I didn't measure the frame itself but it's got a 35 1/2 inch standover which is perfect since I've got a 36 inch inseam.
I've really got to get different tires for it, I want to go back to 1 1/8 inch tires because the 1 1/4 rear that's on it feels kind of squishy even at 95psi.
I still had the original gumball tires on mine when I sold it. She was in great original condition. I also got mine for free, used it for a few years and then sold it for almost $200! Had the same standover height as yours and was a ball buster for me, even though I'm 6'3". (:
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