Information on Independent State Covers
- Alabama (Domestic Mail) (v1.2)
- Alabama (Foreign Mail) (v1.0)
- Arkansas (v1.2)
- Florida (v1.2)
- Louisiana (Domestic Mail) (v1.1)
- Louisiana (Foreign Mail) (v1.2)
- Mississippi (v1.0)
- North Carolina (v1.1)
- Texas (v1.1)