Vintage Campagnolo Record front and rear hubs. The spoke holes in the flanges of these hubs require the use of thicker 12 gauge spokes which are 2.6mm. to build wheels. Smaller spoke diameters will not work on these hubs. These type of hubs are typically seen on heavy duty touring randonneur bikes or high quality tandems.  See attached photos for hub spacing. The hubs have been used and show signs of wear and age. Please review the photos as they are part of the description.