Originally Posted by EGreen
Ok, guy's I gotta fess up to a discovery I made just today. After much scrutiny of the bike, many inquiries, postings, and review of the original pictures, I thought to untape the seat tube and take another look at it for signs of the tubing material, alas, right there where it should be, unfaded and umblemished was a decal indicating 'high resiliency 2040 tubing'
There's a thread on Numbskulls, perhaps I should post this there!

A 2040 tubing label would place it back further, but no earlier than 1976. Assuming that the digits on the lugs do represent the year, could the second number be an incomplete 8, as opposed to a 3? 78 would put it in the right timeframe for the tubing. But then, it's a mute point, given Blue Order's 61 or 81. Back to square one!