I know very little about ships, boats, etc., but there are quite a few to be found on both circulation and NCLT coins. Myself, I prefer circulation coins.
Here is an attractive sailing boat design on a Pakistan coin of the early 1960s. Note the legend change from "FIVE PICE" to "5 PAISA". The figure five is shown in Arabic form on the mast - a nice touch.
There is also a later variation of the coin from 1971. This time it has a European figure five on the mast, but there is no longer any European lettering on the design. Can anybody read what is written in the native language?
Notice also how the European Christian-era date has been replaced by a star. The date is now given on the obverse as "1971", in European figures.