This is a blue 58mm Classic SD with on one side a metal inlaid emblem of the US Air Force, and on the other side a metal inlaid emblem of the Air Training Command.
external links: SAK Wiki
Tag: air force
0152 – Victorinox Classic SD (Secretary of the Air Force)
This is a blue 58mm Classic SD with on one side “Secretary of the Air Force” and on the other side the flag of the Secretary of the Air Force.
external links: SAK Wiki
0047 – Victorinox Minichamp I (US Air Force)
This is a blue 58mm Minichamp I with United States Air Force seal on the front, instead of the Victorinox Shield. As far as I know the US Air Force Classic is the only “official” Victorinox knife with US Air Force logo, so I think this Minichamp is a modification someone made. Nevertheless it’s very nice to have!
As said it’s a Minichamp I, meaning it is the Minichamp in it’s original configuration. Later models have a cap lifter with Phillips screwdriver, and a ballpoint pen instead of the toothpick.
external links: SAK Wiki
0014 – Victorinox Classic SD (US Air Force)
This is a blue 58mm Classic SD with United States Air Force seal on the front, instead of the Victorinox Shield.
As you can see the scissors have the adjustable screw pivot. Victorinox stopped using those in 1991 (they use rivets since then), so this knife is at least 25 years old!
external links: SAK Wiki