Excelent idea VonDos. Try this link ( in Spanish). Very good and big pictures.
http://www.vidamaritima.com/2007/05/...s-treinta.html.
The picture of Cabo Santo Tome's propellers is very interesting.
"When the Soviet sailors realized that large red crosses on white sides and deck of hospital ships mean nothing for the German pilots 
, all ships were repainted to masking colors" said in Axis History Forum.