If you missed this on your first play through (like I did), it's a quick pick-up from Chapter Select.
1) From the main menu, choose "Chapters"
2) Choose the SECOND chapter called "Of all the gin joint..."
3) Run down the main street to the Ghost Note to meet Didi
4) After the cut scene, CONTINUE down the same street (do not enter the Ghost Note)
5) Activate the gramaphone to trigger the shadow scene on the wall (Didi and Kat speaking)
6) Slip into shadow and navigate UP and RIGHT to the platform where the Luminary is
7) After you get the Luminary, hop ACROSS to the open air balcony with all the table and chairs.
8) Run into the back room and flip the switch on the wall.
The logo will appear on the wall (along with a list of donors), and the trophy will unlock.