Item #: SCP-2993
Object Class: Safe
Special Containment Procedures: SCP-2993 is to be contained in a standard secure locker at Site-19. Access to SCP-2993 is available only to staff Level 2 and above. Any personnel wishing to use SCP-2993 must contact the current leading researcher assigned to SCP-2993.
Description: SCP-2993 appears to be an unremarkable pair of aviator sunglasses with no visible markings or logos. The durability of SCP-2993 is unremarkable and without proper care may be damaged in a way similar to its non-anomalous counterparts.
When viewed from the front, SCP-2993 is opaque and acts as a mirror. No form of radiation is able to pass through SCP-2993, including visible light. Replacing parts of SCP-2993 while preserving its original function is possible as long as more than 50% of the original mass is present. The most notable feature of SCP-2993 occurs when it is viewed from behind: SCP-2993 shows exactly six hours behind the period of time the user is wearing them (see Addendum SCP-2993-1).
Addendum SCP-2993-1: A Junior Researcher under Dr. A████████ compared security footage to the view through SCP-2993 while searching for any abnormalities that lead to the containment breach of [DATA EXPUNGED]. Security footage showed the researcher writing on a piece of paper "The quick brown fox jumps over the lazy dog," a sentence that contains all 26 letters of the alphabet. Six hours later, the researcher (using SCP-2993) noted that the sentence read, "A mad boxer shot a quick, gloved jab to the jaw of his dizzy opponent," a sentence that also contains all 26 letters of the alphabet.
Further testing has revealed that the past as viewed through SCP-2993 contains many minor changes. Examples include Junior Researcher B█████'s hair as shoulder-length instead of neck-length, an Agent's first name spelled as Hannah instead of Hanna, and the color of Dr A████████'s favorite pen appeared green instead of red.
Addendum SCP-2993-2: Due to differences in details found when viewing the past while wearing SCP-2993 (detailed in Addendum SCP-2993-1), Dr A████████ used SCP-2993 to look over notes he had taken on SCP-████ six hours before. The notes on SCP-████ appeared to be minimally different, excluding ten millimeter differences in length of the steel bars keeping SCP-████ in containment. Although this difference appears negligible, the difference in length would normally lead to a security breach by SCP-████.
Although these dimensions should have caused a containment breach for SCP-████, no such breach occurred. Approximately three hours later, when Dr. A████████ used SCP-2993 to observe the containment area of SCP-████, SCP-████ did not break free of containment, and the differences in measurement observed by Dr. A████████ while wearing SCP-2993 were non-existent when he performed measurements of the containment unit himself.
Memo from Dr: A████████: "Is what SCP-2993 shows us consistent? We know that it maintains at least some level of accuracy in regards to reality, at least nominally, as noted in Addendum SCP-2993-1. Is SCP-2993 selectively altering information? I can't help but wonder what mechanisms influence the effects of SCP-2993.