Someone tied this binder to the anchor. Why would they do that?

 

It appears that the binder is marked with tabs. Under the clue tab you see 4 clues marked by numbers. The clues are correlated with the wooden flaps in the treasure room.  Once a clue is solved, you should have a coordinate to click under the Upper-Deck Map tab.

 

Once you have found all 4 items, you will be able to release the helm to sail away by touching the items in the order they appear under the Items Found tab. Can you remember where you have seen these pictures before?