You're right! Hatsushimo didn't even crossed my mind!
The stealth ship. Until her Kai-ni she was the ship with THE least artwork, even compared to ships released much later than herself. (With Kai-ni, Wakaba has that dubious distinction among the oldest ships, but there are some really rarely drawn newer ships that have been added. Nobody cares about -or remembers- poor Okinami or Kazagumo...)