Examination Room - Heisenberg's Factory MB4 (Resident Evil Village)

On the workbench in the north east corner, next to the door leading to the Generator Room Walkway.

Inside the large case in the eastern room.

Sitting in the chair in the middle of the main room. It will come to life after acquiring the Relief Mold from the eastern room.

Dropped by the Soldat Eins when you kill it.