French unsinkable ships built in the USA according to the Dutch magazine Marineblad dated 1917-1918 no. 6

An item referred to the Times publishing a tiding dated Washington, USA 17th November reporting that the Shipping Board approved the building in the USA of 20 unsinkable 4.000 tons ships for French account. French experts designed these unsinkable ships which survived during tests 4 torpedo hits on the hull without damaging the hull.