Niger FDC Envelopes · Carlson Fable Collection

Title: Niger FDC Envelopes
Description: 1972 On November 23, 1972, the Republic of Niger issued a set of air mail stamps in honor of Jean de la Fontaine, including the three specimens pictured below, each on a first day cover and each in a numbered series of 2000. $30 from Alexandre Przopiorski, August, '99.

The stamps in each case seem to include three colors, one of which is black and one brown. A strong brown foreground stands against a sketchier blue or green background. Are there more in the series?
Source: $30 from Alexandre Przopiorski, August, '99.
Date: 1972
Subject: Stamps and Mail See all items with this value; The Fox and the Crow See all items with this value; The Lion and the Mouse See all items with this value; The Monkey and the Leopard See all items with this value