All effigy locations shown in screenshots. The roach icon marks the spot on the zoomed-out view (tab). You do not need to collect all effigies in one go, so feel free to use the level selection. The achievement unlocks the moment you destroy the last one.
Inside the Drawer, hard to miss.
After waking up Joseph, drop down on the chair.
In the top right corner before you meet the hunger artist.
Just past Ulysses.
Below the pipe you exit before reaching the fan.
On top of a small cliff after you meet the two mushroom enjoyers.
On the wood structure opposite of charon
Behind the Books.
Below the grammophone.
On the stack of books behind the chair. Drop down the left side of the green book down on the beige one, you can see the effigy from there.
In the desk. You need to climb up a wall to get here.
On the lawyer’s desk. Walk down a slope next to the stamps.
Walk to the left right after starting this chapter.
You can drop down from the conveyor belt to get here. The effigy is behind some books.
Slip through a gap in the rusty section to get below the conveyor.
Directly after exiting the boat.
On a roof next to the tall, square building.
Up in the clocktower.
In a building next to the marketplace.
On the level just below the goal.