SCP Anomaly Classification System Poster (Aged Version) iPad Case & Skin for Sale by Puzzlr

SCP Foundation, Wiki

SCP class logos Scp, Scp cb, Scp 049

SCP ACS Diagram (I saw another one somewhere on here, but it didn't have all the info I wanted, so I made a more accurate, but uglier version) : r/ SCP

Containment level logos (TheVolgun) : r/SCP

SCP Foundation Object Classes Chart (Redesign) by jordanli04 on DeviantArt

Keter Classification SCP Foundation Secure Contain Protect by Darad Astry

New SCP Classifications? (The Anomaly Classification System Explained)

Keter Classification SCP Foundation Secure Contain Protect Sticker

SCP-001 (OVERLORD CENSURE), Wiki

SCP foundation Class D Postcard for Sale by Jack O TV