MV Doulos HORN: The Sound of the (former) World's oldest ocean-going passenger ship

[@tutihastuti6089]

Medina ( 1914 - 1948 )
Roma ( 1948 - 1953 )
Franca c. ( 1953 - 1977 )
Doulos ( 1977 - 2010 )
Doulos phos ( from 2010 )

[@LuccianoBello-o8t]

This sounds like a train horn