Houyoux 1F50

From Stamps of the World


Turquoise-bleu
06 Dec 1926
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Intense Turquoise-blue
.. 1930
.
Ultramarine
.. 1930
.
Intense Sky-blue
.. 1930
.
Pale Green-blue
.. 1930
.
Dark Green-blue
.. 1930
.
Ultramarine
01 Jul 1929
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Light Blue
25 Nov 1930
.