I purchased this frame pretty cheap from ebay.
It appears to be a columbus frame and forks which according to the seller originally had campag parts on it (apart from the brake calipers).
S/N on BB is: 5971 (i think). Dropout are columbus and there were faded remains of a columbus sticker on the fork, which is why I assume it is all columbus steel.
There was a decal on the downtube for the 'Canadian Cycling Association' and a maple leaf sticker on the headtube so presumably it was in Canada at some point in its life.
Original colour was a dark midnight blue, judging by the colour of the steerer tube.
The frame came with possibly original cinelli giro d'italia bars, weird cutout SR stem, universal 'super 68' calipers and campag levers.
Would love to know what it is so I can restore it to a decent degree!
More photos here: http://imgur.com/a/9jl5t