Brazil Postage Due

 Most of the postage due forgeries of Brazil were sold by Fournier.

1-1-1890 Issue

All in carmine red

Source: American Bank Note Company

Release: 1889

Printing: Typographed, rouletted, smooth white gum

Paper: White, medium-thick 

Fournier Forgery

Release: Europe, circa 1905-1910
Printing: Lithographed, rouletted, ungummed
Paper: Indistinguishable from genuine paper

The only easily noted difference is in the shape of the letter "Z"

Second Issue

Source: American Bank Note Company
Release: January 1890
Printing: Typographed, rouletted, smooth white gum
Paper: White, medium thick (80 microns)
Note: This issue used the same plates as the first postage due series.
The red issue was intended for use in the capital of Rio de Janeiro,
while the multi-colored stamps went to the provinces.

Fournier forgery

These forgeries were printed with the same plates as the first forgery and therefore exhibit the same flaws.

Here is a rare full sheet of the Fournier forgeries