Arrange the features on the Dragon Face lock to match the positions in the picture, then press the latch at the top to open it.
Left (your left) horn : flat to left
Right horn : up to right
Left eyebrow : up to middle
Right eyebrow : over top of eye
Left eye : down and left
Right eye : up and right
Chin : halfway down below mouth
Tongue : all the way out
There are a bunch of pieces of paper the you have to touch which completes a pic of what the dragon should look like.
There is no safe on Counterfeit Island. There is an underground hatch that has a Dragon Face lock on it.
it looks like your face
The main entrance is just to the left of the park where you arrive on the island. You will not be able to enter the museum until you have taken the Underground Tunnel Tour. At night, the secret underground entrance leads up into the supply room. You will need to open the Dragon Face lock. (see related question)
The "ram thing" is a dragon face. (see the related question)
it helps you save the scream painting but you will get to jail to finish but it helps.
it looks like an idiot and has weird eyes. i hate it
The Supply Room door has a key, which you receive when you get the museum job. The underground entrance is locked with the Dragon Face lock. The house in the Countryside is only unlocked later in the game when you receive the key.
it opens a secret passage
At night, you enter the museum through the Dragon Face hatch (use the Docks entrance to the underground). Once you get past the security room and the lasers, climb the light by the painting. (This eventually works out.)
That should NOT be possible. In order to have the 6 pieces to the Dragon Face picture, you had to open the door to the Supply Room. And you cannot open the dragon face without all 6 pieces.
You see it as the board ladder near the end of the Underground Tour. It is a locked hatch up into the museum's supply room. To open it at night, solve the dragon face puzzle. (see related question)