This signed COA edition of Transformers: Infiltration #1 RI-C Wraparound Variant was exlusive to the UK "Auto Assembly" Transformers Convention.
The convention was held on June 3, 2006 in Birmingham, UK.
The only difference that distinguishes this edition from the regular RI-C variant, is the addition of a hand-signed and hand-numbered Certificate of Authenticity with the comic, by writer Andrew Furman and artist Andrew Wildman: the team that comprises "Wildfur".
These issues were also distributed and sold through the internet.