I only know this is a Centurion Frame. Someone out there aught to recognize which series and likely even the year; but it isn't me. What I do know... Steel Frame (Magnetic) Top Tube : 22'' (56cm) approximately Seat Tube : 213'' (59cm) approximately Chainstay: 17.5'' (44/45cm) approximately This is previously owned, definitely not a museum piece, but lots of restoration options. There is rust. There is paint damage. No signs of structural damage. Please take a keen eye to the pictures.