CLUI Posts Scans of a 'Los Alamos Rolodex' of Nuclear-Complex Business Cards

The Center for Land Use Interpretation (CLUI), an organization that documents how American land is used and perceived, has published a small online gallery titled ‘A Selection of Los Alamos Rolodex Business Cards.’ The page presents photographic scans of roughly a dozen business cards drawn from a Rolodex tied to Los Alamos, the New Mexico site of the national laboratory at the center of U.S. nuclear weapons work.

As published, the collection is purely visual: the page carries the cards themselves and a title, but no accompanying essay, provenance details, or curatorial notes explaining whose Rolodex it was, how CLUI obtained it, or which specific firms appear. The interest of such an artifact is the ecosystem it hints at — the contractors, vendors, and support organizations that orbit a secretive federal weapons facility — but the source page does not spell any of that out.

For a technical audience the item is a cultural curiosity rather than a security or technology story. It landed on Hacker News as an offbeat historical find; anyone wanting the actual significance, names, or backstory would need CLUI’s fuller collection materials, which this particular page does not include.