Here's the USS Cod (Gato class with the cutdown tower) in Cleveland, Ohio, pics taken by me. I also believe she is the only fleetboat left that has a 100% working TDC. You can see the gray paint and the top deck is painted black. I remember that the deck was very hot the day I took the shots due to the sun beating down on it all day.
Here is a closeup of the tower with all the awards and ships sunk, junks sunk, and a martini glass for saving a dutch submarine crew. I didn't feel like rotating the image, sorry.