Four envelopes featuring stamps of Jean de La Fontaine

Title: Four envelopes featuring stamps of Jean de La Fontaine
Description: 2009 Four envelopes featuring stamps of Jean de La Fontaine, his Paris home, a tortoise, and a hare. April 13, '09. Addressed to Constantin Popescu, Rm. Valcea, Romania. From Constantin Popescu, May, '09.

One notices the popularity of TH. There are three cancellation seals. They feature TH, FC, and GA, respectively. The seals, stamps, and envelopes are nicely correlated. I am surprised to see La Fontaine's Paris home featured rather than his home in Chateau-Thierry. "Luna Padurii" seems to mean "Forest Moon." Occurrences on the web seem to indicate that it lasts from March 15 to April 15. Offhand, it is hard for me to see the connection with La Fontaine.
Source: From Constantin Popescu, May, '09.
Date: 2009
Subject: Stamps and Mail See all items with this value; The Tortoise and the Hare See all items with this value; The Fox and the Crow See all items with this value; The Grasshopper and the Ant See all items with this value