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

SCP Foundation - Wikipedia

For all personnel confused by the new Anomaly Classification System, I've made an at-a-glance poster for your office/room (higher resolution versions available on request). : r/SCP

SCP Anomaly Classification System Poster (Aged Version) | Poster

RPC Object Classes, SCP Foundation

Euclid Classification SCP Foundation Secure Contain Protect Long Sleeve T-Shirt

SCP Foundation Members Tees, Class Obejct : EUCLID Art Board Print for Sale by Yu-u-Ta

SCP-001 (OVERLORD CENSURE), Wiki

New categories for risk class? : r/SCP

ZackVMK's ACS Icon Page - SCP Foundation

SCP Foundation: D-Class Sticker for Sale by Rebellion-10