# Telex — Upstream Source Investigation
**Model**: Claude Opus 4.6
-**Date**: 2026-03-12
+**Date**: 2026-03-25
**Investigator**: AI agent (Claude) under guidance of @felipesanches
-## Summary
+## Source Repository
-No canonical upstream repository with UFO or Glyphs sources was found for Telex. The family was designed by Andrés Torresi for Huerta Tipográfica. Searches of the huertatipografica GitHub organization (github.com/huertatipografica) revealed 22 repositories, none of which was named Telex or contained the Telex font sources. GitHub-wide searches also returned no relevant results.
+Source files were found in the **googlefontdirectory-hg** monorepo at commit `52f780bc9d197280a9f430574e179a5f233c56b6`, under the path `telex/src/`.
-## Searches Performed
+### Source Files
+
+- **VFB (FontLab)**: Telex-Regular-OTF.vfb, Telex-Regular.vfb
+- **SFD (FontForge)**: Telex-Regular-TTF.sfd
+- **OTF (compiled)**: Telex-Regular.otf
+
+Sources are in VFB (FontLab, proprietary) and SFD (FontForge) formats, neither of which is buildable with gftools-builder.
+
+## Investigation Details
- github.com/huertatipografica — full repo list checked, no Telex repository
- GitHub search: "Telex font typeface" — no results
- GitHub search: "Telex huertatipografica" — no results
- github.com/googlefonts/Telex — not found
- github.com/huertatipografica/telex — not found
-
-## Conclusion
-
-No source repository with UFO or Glyphs sources was located. No source block was added to METADATA.pb.