SCP Foundation Members Tees, Class Obejct : SAFE Poster for Sale

A complete guide to SCP object classes (based on u/Cooldude971's list) : r/ SCP

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

Keter Classification SCP Foundation Secure Contain Protect by Darad Astry

Keter Classification SCP Foundation Secure Contain Protect Tote Bag

Keter Classification SCP Foundation Secure Contain' Baseball Cap

Stream episode Tutorial-02 - Foundation Personnel Classifications by The SCP Foundation Database podcast

SCP Foundation - Class D

SCP Foundation Card Key Card Sticker Mug Notebook

SCP Anomaly Classification System Poster (Aged Version) Metal Print for Sale by Puzzlr

SCP FOUNDATION: Entity Classification Logbook: Log, classify and describe new SCP Foundation entities in this logbook - 6x9 inches - 120 pages