Per 
Item #: SCP-3871
Object Class: Euclid
Special Containment Procedures: SCP-3871 poses a substantial threat to individuals that have not undergone Protocol 3871 - B. Contact with the item, whether it be through visual contact, visual surveillance, or physical contact is limited to Level 4 Personnel or higher. The item is to be stored within a 3 inch thick steel chest, and the chest is to remain locked at all times of day, other than for testing.
Testing is to be executed by at least two Level 4 Personnel, following protocol 3871 - A, which is listed below.
1. Two Level 4 Personnel (Hereby know as X and Y) are to enter the containment room, both with refractive headwear on to distort the views of those entering.
2. X will open the chest, while Y will continually keep visual contact with the item.
- X and Y are not to remove the protective goggles for any reason while SCP-3871 is not contained.
3. X and Y will execute the experiments that they were assigned, then return the item to the chest.
4. If at any point X and Y begin to experience fear, rage, or any other extreme emotional responses to SCP-3871, they are to immediately be withdrawn from the room, and are subject to undergo Protocol 3871 - C.
Description: SCP-3871 is a medium - sized leather wrapped journal from the Victorian Era. The object was first discovered in [REDACTED], Britain by two of our specialists, agents [REDACTED] and [REDACTED]. The item was found in a community where there were several cases of hallucinations,
Additional Notes: SCP-005 may be used as a replacement for lost security passes, but only under the supervision of at least one (1) Level 4 personnel. SCP-005 may not be used for vending machine repairs, opening lockers, or for any personnel's spare home key. Removal of the object from the compound will result in immediate termination.
Appendix A: While SCP-005 has been shown to be effective in removing almost any form of locking device, further experiments have shown that efforts to disguise the purpose or identity of a lock have proven at least somewhat successful in defeating SCP-005's ability. In approximately 50% of cases where a volunteer was not able to identify a locking device as such, SCP-005 was not successful in deactivating the device. Due to these results, SCP-005 has been tentatively classified as 'sentient' and further tests are being run to determine its cognitive abilities. However, there are no results that show any traits that prevent it from being able to identify any particular locking device, only that the aforementioned device has been heavily concealed and disguised.
