AEROSAB POSTAL: Cover used in SE/1994 with marks of this Post, along handstamp of "Alas Cargas Aereas S.R.L.", VF quality, very rare! (Image)

ASESORES DE SERVICIOS FINANCIEROS S.A.: 2 Used covers with marks of this Post, VF quality (Image)

BC Correo Privado: Used cover with marks of this Post, VF quality (Image)

ENTREGAS PERSONALES S.R.L.: 2 Covers used in 2000, with marks of this Post, VF quality (Image)

GEMA LIBA: Used cover with mark of this Post, VF quality (Image)

INTERNATIONAL BONDED COURIERS: 2 Covers used in 1994, with marks of this Post, VF quality (Image)

LUCIENNE S.A.: Cover used on 19/MAR/1996, with marks of this Post, VF quality (Image)

MOTO CENTRO S.R.L.: Used cover with marks of this company, VF quality (Image)

NORTE ASISTENCIA: Cover used on 22/JA/1998 with marks of this Post, VF quality (Image)

ODESE S.R.L.: Used cover with mark of this Post, VF quality (Image)

Q POSTAL: 2 used covers with marks of this Post, VF quality (Image)

SAVISUR S.A.: Cover used on 24/AP/2000 with mark of this Post, VF quality (Image)

STC: Used cover with marks of this Post, VF quality (Image)

SURE XPRESS: Used cover with mark of this Post, VF quality (Image)