recto 1, verso 1, recto 2: Reynaldo Hahn (1874-1947), composer. Long musical quotation of a fragment of an unfinished Serenade for cello and piano which he dedicates to cellist Margaretha Martelet. The "Association Reynaldo Hahn" told me that the Serenade was never finished and that no other documents or manuscripts exists with sketches of this composition. So this is a unique detail of this work!

verso 2: blank

Page from the autograph book of Margaretha Martelet, cello professor and member of the Orchestra Concerts Colonne. Page measures ca. 12x18 cm.