Jyunsen B with flag, periscope mast fix by Peabody and IJN telegraph, all will be included in a next (2.6) version of the Jyusen B, Kaidai and Kaichu mod. They are available separately (2.5 + telegraph) as of now.
Beautiful flag !
btw it's at its correct position. but does it disappear when submerged ? k