There are several "old keys":
Clerk's key[]
| Old key | |
|---|---|
 Item needed to complete a quest. | |
| Description | |
Inventory/slot |
Quest items / Keys |
Category |
Common item |
Type |
Other |
Expansion |
Blood and Wine |
Source |
On a body in the central Bastoy Prison Ruins at the treasure hunt marker. |
Base price |
1 
|
Price to buy |
1
|
Price to sell |
1
|
Weight |
0.01 
|
The Old key is found on the body of a clerk at Bastoy Prison Ruins, together with the Clerk's diary.
Associated quest[]
Old key from Ard Skellig[]
| Old key | |
|---|---|
| |
| Description | |
Inventory/slot |
Quest items |
Category |
Common item |
Type |
Key |
Base price |
2
|
Price to buy |
2
|
Price to sell |
1
|
Weight |
0.01
|
This old key is found along with a mysterious map somewhere south of Blandare, near the lake. It unlocks a chest under a nearby waterfall.
Associated quest[]
Old key from Undvik[]
| Old key | |
|---|---|
| |
| Description | |
Inventory/slot |
Quest items |
Category |
Common item |
Type |
Key |
Source |
skeleton |
Base price |
2
|
Price to buy |
2
|
Price to sell |
1
|
Weight |
0.01
|
This old key is found on a skeleton along with a mysterious map, just inside the gate of the Dorve Ruins.