Dutch merchant ships fitted out by Marconi with wireless telegraps devices according to the Dutch magazine Marineblad dated 1912-1913 no. 8

An item referred to the magazine The Marconigraph reporting that the Marconi Mij. Was ordered to fir out 17 ships of the Dutch shipping company Stoomvaart Maatschappij Zeeland, 11 ships of the Rotterdamsche Lloyd and 4 ships of the Kon. West-Indische Mail with wireless telegraph devices and on short notice another 5 ships of the Koninklijke Paketvaart Maatschappij.