Kolovraty is the southernmost Prague station on Linka 220, the next station south being Ricany, which is technically outside of Prague. When I first started regularly traveling this route in 2005, Kolovraty still had a small concrete station, but this was removed around 2006 during the reconstruction. Judging from the shape of the building, there does appear to be an older station building, long since repurposed, further to the west on the north side of the tracks, although I can't confirm this. One way or another, Kolovraty has never been a major station, and only became a Prague station in 1976, after the city limits expanded to include Kolovraty in 1974.