Issued to Commemorate the Visit of the President of Brazil Dr. Campos Salles
Printed on Yellowish Thick Paper With 5c Green Liberty Head Stamp Imprint.
Portraits of the Presidents of Argentina and Brazil on the Inside
Either in Horizontal or Diagonal Positions
A 100 Reis Brazil Stamp Printed on Back Flap.

Design Proof:
Portraits in Brown and Black 
Instead of Green and Black Issued Color

Printed on Evelope Front Face Instead on the Inside

Without the 5c green Liberty Head 
and 100 Reis Brazil stamp imprints.

Design Proof: 

Presidential Portraits in Green and Claret
Instead of Green and Black

Without the 100 Reis Stamp Imprint of Brazil on Back flap.
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Design Proof: 
5c Orange Liberty Head Instead of Green Issued Color

Portraits in Green and Black Issued Color