Burakh's Key

The Burakh's Key is a quest item from Pathologic.

The Haruspex receives it from Alexander Saburov on Day 2. It unlocks the box containing his inheritance, which is being held by Aspity.

Quote
"A heavy old key with small seal stamped into its shaft. A sign of legacy, of inheritance. It does not look like a door key. It probably unlocks a chest or a heavy case."