Carte autographe signée rectifiant une erreur d'adresse pour son correspondant

Autograph card signed, 7 lines in black ink.
A stain in the left margin affecting the first letter of the third line.
In this note, Huysmans questions the address of Dom Besse, Benedictine monk, French writer and historian, which he had previously communicated to his correspondent and for which he seems to have made an error.
As a precaution, he details it to him again.