P.B. Visser c.s. of Sliedrecht, Netherlands received concession for a towing service according to the Dutch newspaper Nederlandsche Staatscourant dated 20 May 1868

An item reported that the minister of home affaires decided on 15 May to give P.B. Visser c.s. of Sliedrecht, Netherlands to increase their concession dated 7 May 1867 for a steam towing service in the province Zuid-Holland with the canal of Voorne.