It's circa 1992, original price $700 US. The 914 was a mid-range model. There was a similar 916 that year that used the same frame but had 600 Ultegra components. The 914 is a very good bicycle, particulary the splined, triple butted tubeset.
The bicycle was designed for club racers and triathletes. The single boss on the front of the downtube is not for a water bottle. It accepts the holder for compressed air cartridges which were popular alternatives to pumps, especially with triathletes.
In 1992, 105SC was 3rd from the top, in the road groups.