BLUE MAIL S.A.: 5 Covers used between 1999 and 2003, VF (Image)

CASESA: 6 Covers used in 1995 and 1996 (Image)

EMA S.A.: 5 Used covers with varied marks of the private post, VF (Image)

ESETECE: 3 Covers used in 1995 and 1997, VF (Image)

FAST MAIL: 3 Covers used between 1997 and 1999, VF (Image)

MAIA POSTAL: 4 Used covers with varied marks of the private post, VF (Image)

MOTORMAN: 4 Covers and a large fragment used in 1998 and 2000, VF (Image)

SKYCAB: 7 Used covers with varied markings of the private post, VF (Image)

TRANS-BANK: 6 Covers and 1 leaflet used between 1994 and 1996, with varied marks of the post, VF (Image)

TRANSPORTES SIDECO: 6 Used covers with marks of the private post, VF (Image)