Re:
Fwiw I too think it is 'north' or 'south' gate on the head badge rather than 'east'.
When Keith says Agrati ends were quite common in the fifties, I imagine he means this in the same sense that Campag. ends were common in the sixties/seventies? They were, but only up beyond a certain level of quality.
If the frame has fancy hand cut lugs, Agrati ends and a curved brake bridge I'd think it is almost certainly 531 and must have been a fairly desirable machine in the fifties, probably top of the range.
Please don't get it powder coated.
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