Contains a letter written by Anna de Noailles to the poet "Louis Focilly," corrected by another hand to "Louis Foisil," the poet. Noailles thanks Foisil for the verses he wrote and dedicated to her in the margins of a copy of her work L'Ombre de Jours.

The letter has a unique format, appearing as a quire of two glued bifolia, with the inner leaf having rounded edges.