The first Dutch submarine, Hr.Ms. O 1, originally called ''Luctor et Emergo'' build at the Schelde yard. The Design is based on the well know HOLLAND designs from USA.
A proposal given to the Government of Flanders and Belgium for a submarine for the Royal Belgian Navy.
Modified design of the O 1. Even the Belgians came over for order discussions, they never ordered, but went for minelayers instead.
The first submarine to serve in the Colonials (hence the ''K'' - Kolonien)