Welcome to the security envelope pattern archive, the living heart of the S.E.C.R.E.T. Project. Here you’ll find a meticulously classified portfolio of patterns that once guarded confidential contents—from banking slips to bureaucratic missives. Each entry is cataloged by visual taxonomy, poetic description, and historical context. This is no ordinary collection; it is a hidden museum of miniature marvels, each one whispering of secrecy, intention, and the artistry of concealment. Begin your exploration, and join us in proudly overthinking the under-appreciated.

Thank you for visiting the Security Envelope Pattern Archive.