How can I travel to another place


Hint 1 of 6:
You can't unless you find money in Sanctuary.

Hint 2 of 6:
Did you MOVE PAINTING above the Doctor's file cabinet ?  +1

Hint 3 of 6:
LOOK WRITING revealed on the wall ?    +1

Hint 4 of 6:
Have you found the Doctor's safe ?

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