Distinguishing features
This is probably an early to mid-90s Celeste Road Bike. I've had it for a number of years. The Serial number is VERY difficult to read unless it's in directly (sun)light. It's on the bottom bracket (I believe that's what it's called). You can flip the bike over to see it. It definitely begins A401 (but the last three numbers are hard to read - the 8s could be 6s).
I've had it for a number of years (since 2011 or so). The pictures can describe it much more accurately than I can, but if all else fails, the bike is known by Curtis and Steve at Via Bikes in Philadelphia (they're my regular bike shop).