You must have read my post wrong, the post says that the institute was in Dallas Co. not that Co. I was from Dallas Co. I've seen it both ways as the cadets were enlisted in 4th Ark or 3rd Ark. I don't know if this is true or not because neither Gammage or Lavender mention where the company came from in their books which I have in PDF files. I'm just saying that "If" they were in the 4th that would explain how an AMI button got there.