From Team Fortress Wiki
The SpaceChem Pin is a promotional miscellaneous item for all classes. It is a silver aviator pin with the SpaceChem insignia in the middle.
The SpaceChem Pin can be crafted with crafting materials found by unlocking achievements in SpaceChem.
April 28, 2011 Patch
- The SpaceChem Pin was added to the game.
October 13, 2011 Patch (Manniversary Update & Sale)
- [Undocumented] The SpaceChem Pin no longer disappears on death
- Several people have received this item without owning SpaceChem, with some even receiving it twice.
- The description to the pin, "No Employment Record Found", is listed as the player's job status in SpaceChem after completing the game. It is also the name of one of the levels on Atropos Station.