My COLNAGO frame has the 'horizontal' style rear drop outs, the "new" (as stated in the 1988 COLNAGO catalog) 'chromed decorative lugs' as shown on a "Master Piu" frame in white with red highlights. It also has the rear brake cable routed through the Top tube, front entry at bottom of TT and rear exit on top of TT.
Cheers!
John G.