Rudge Aero Path Racer

I had bought this chainring to replace my 1935 Rudge restoration as it was a bit loose, but decided to use it for the next project instead. Saw one on US ebay, but he wanted $100 plus postage and customs charges. One popped up on eBay UK and there's another one on at present, but I'll let someone else win that one! The mad thing is that most of these chainrings are hidden behind rusty chainguards!

The frame has been robbed of its bottom bracket and cup, so I'm trying to figure that one out. Might go with a velo orange threadless BB. Just need to measure up for the spindle. Anyone done this for their Raleigh restorations?

Won't you need a cottered BB for that crankset? I've seen them up on ebay reasonably often.