Set Date(s)
20 March 1920 / March 1921
On 20 March 1920, Belgium released these overprints for use in Eupen.
The small issues feature one of two frame types:

The larger denomination stamps can be found in one of two perforations: L 13 3/4 – 14 1/4 (suffix “A”) and L 14 3/4 – 15 (suffix “C”).
In March 1921, Belgium released three additional overprints.
On 20 March 1920, Belgium released these overprints for use in Eupen.
The small issues feature one of two frame types:

The larger denomination stamps can be found in one of two perforations: L 13 3/4 – 14 1/4 (suffix “A”) and L 14 3/4 – 15 (suffix “C”).
In March 1921, Belgium released three additional overprints.