To make matters worse a combined I and J is sometimes used, which looks like a U with a bit missing from the left upright. In this case from a distance you could read her name as RUNHAVEN. I did this years ago with the coaster WIJMERS, and for a long time could find no information about her because I was looking for WUMERS. Fortunately she wasnt registered in Delfzidgel !

The spelling varied throughout the times and companies like DINTELDIJK and DINTELDYK, some ships where renamed from IJ to Y, some never and others sailed from the beginning with Y. I think more 'international' ships like passenger vessels preferred the Y for easier pronounciation.

Ijmuiden is pronouced as in Eyemouth-=Eyemouden-My taxi driver is Dutch

I am only making the first comment because the ship is clearly named Rynhaven on the bow, i guess it is a spelling mistake by the painter?.