Between St. John's water dog and the Polish Hunting Dog which was known to be a landrace bred for a specific purpose?
Polish Hunting Dog The Polish Hunting Dog, or formerly Polish Scenthound (Polish: "Gończy Polski" ) is a breed of scent hound originating in Poland.
Seskar Seal Dog The Seskar Seal Dog ("Seiskarinhyljekoira") is an extinct dog breed from Finland that was recently recreated. The modern dogs are not direct descendants of the original breed. Moreover, they are not used for the same purpose as the original breed. The original breed is typically called Seskar Seal Dog and the modern version Seskar (or Seiskari) Dog. Some 200 individuals in Finland represent the modern breed.