Bristol manuscrit signé Erik A/O dans lequel il félicite sa correspondante

Handwritten Bristol paper on letterhead of the Presidency of the Republic and under the true patronyme of Erik Orsenna, 5 lines in black ink, addressed to Nadine Nimier, wife and widow of Roger Nimier.
Envelope included.
"Bravo pour votre N°III. Quand venez-vous me voir ? 261 51 00. A bientôt Erik A/O." ["Congratulations on your issue III. When are you coming to see me? 261 51 00. See you soon Erik A/O."]
The letters b and i and bientôt having smudged.