The dove logo is not that small (see photo) but sometimes the impression can be very faint. The presence of a Columbus steerer tube can also be verified by the presence of five helical inside the bottom of the tube (see photo). These are only 3.5mm wide and 0,35mm thick and can sometimes be obscured by dirt and/or corrosion on older forks. Given the presence of Campagnolo dropouts on the fork and the rectangular Columbus decal, I'd expect a Columbus steerer tube, which would confirm a full Columbus frameset.