The Box Analogy (an infographic I made a couple of semesters ago as part of my Editorial Production class). It has a couple of design mistakes I wish I could fix, so
The SCP Box file - The SCP Box - Mod DB
A Guide to the SCP Foundation: Object Classes: The Box Tests VER.2 : r/SCP
SCP-3663 | SCP Foundation Amino
SSCP-3663, sad dangerous box dude : r/SCP
SCP box metaphor by That1PersonWhosWeird on DeviantArt
SCP Foundation Loot Box – Newscape Studios
SCP Foundation Logo Box Thaumiel Class Object Engraved Wood | Etsy
SCP-1762 - Official SCP: Unity Wiki
SCP-5055 - SCP Foundation
SCP-2600 - The Empty Box | SCP Foundation | Know Your Meme
Anime SCP Foundation Student Stationery Black Pen Bags Pencil Case Pencil Box | eBay
A Guide to the Foundation: The Object Classes in terms of the Box Tests (idk if “meta” is the right flair. is it?) : r/SCP
SCP Special Containment Procedures Foundation Folding Square Storage Box Case | eBay
SCP-988 - SCP Foundation
Fandom Box SCP Foundation "Doctor" : @gimmler1995 Tonny Sheanen wish
Decided to make a SCP Box Rule Icon Pack. - Undertow Games Forum
SCP Special Containment Procedures Foundation Replenishment Supply Box Blind Box | eBay
SCP-902 | The Final Countdown - SCP | Secure. Contain. Protect.
SCP-XXXX "The Music Box" - SCP Sandbox Wiki II
The Box That Kills | Wiki | SCP Foundation Amino
SCP Foundation Box Engraved Wood Gift Box Safe Objects Box SCP | Etsy