Comstock Center Rooftops is the fourth mission in Bioshock Infinite and it has 4x Kinetoscopes ,1x Telescope and 6x Voxophones collectibles. Bellow you will find screenshot guides and explanations on how to find all of them.
Comstock Center Rooftops Kinetoscope no.1,2,3
As soon as you enter “The Blue Ribbon” restaurant, you will find three Kinetoscopes next to each other.
Comstock Center Rooftops Voxophone no.1
Once you get the shield potion from the girl, look around in the kitchen behind her. The first Voxophone is on top of the sideboard.
Comstock Center Rooftops Voxophone no.2
After defeating the enemies and collecting a machine gun you will reach the rooftop with a skylight. Break the window and jump down into the room below. Once you enter the room, go down the stairs, through the door to the left of the bed. In a small bedroom you will find the Bioshock Infinite Voxophone no. 2.
Comstock Center Rooftops Kinetoscope no.4
Once you exit the building with printing machines, turn right and pass by a vending machine. Behind a tent you will find the next Bioshock Infinite Kinetoscope.
Comstock Center Rooftops Voxophone no.3
As soon as you exit the building with the printing machines, you will come across a small stage, with a voxophone on the table.
Comstock Center Rooftops Voxophone no.4
Enter the building behind the statue which represent a man killing a snake, go down the hall until you reach the next statue of “John Wilkes Booth”. Enter the room to the left, and you will find the Voxophone no.4 on the bar.
Comstock Center Rooftops Voxophone no.5
At the same building, you will find a room with the altar and many cultists. On one of the benches you will find the Voxophone no.5.
Comstock Center Rooftops Voxophone no.6
Enter the room to the left of the video-projector. On the desk, at the end of the room you will find Bioshock Infinite Voxophone no.6.
Comstock Center Rooftops Telescope no.1
At the end of the chapter, after obtaining craw ability from a craw cultist, as soon as you exit the room, look to the left and you will notice a floating gondola, and the only one telescope in this chapter.