Just what the title says, I have no idea on the model number, only that these are super nice shirts that are perfect for everyday/work wear. Made of what feels like mostly cotton, or all cotton, and featuring vented armpits, these are made to get the job done. Button closure. Most have the Esercito (Army) stars on the collar as well. I'd classify these as a "medium weight field shirt". Wish I knew more about them, but that's all I've got!
NOTES: These are all used, so expect wear, fading, small rips/tears and field repairs. That being said, you won't get an un-wearable piece of crap only suitable for cutting up in to rags.