Singer of the comic opera

Finding on the reverse:

On the white backing of the cardboard: handwritten in red colour: "1927 10 III / Sängerin der / komischen Oper / Klee"; top right round French customs stamp in blue: "DOAUANE FRANCAISE [central]: RE## / De Paris Chapelle".

Bottom left inventory note of the BStGS; top left old torn-off note, remnant of a typewritten inscription: "[...] / Telefon [...]". On the nailed-on wooden frame: On the left moulding: Label of Galerie Flechtheim, Düsseldorf, Königsallee 34, with remnant of an inscription : "[Sän]gerin / [...] mischen / [...]27"; On the right strip in blue "B 8563"; on the bottom strip note: "Sängerin der komischen Oper". The size of the frame was altered and adapted to the painting by Klee, inv. no. 14233, at an unknown date. Presumably this only happened during the BStGS, as the frame was not described during the inventory.

On the reverse of the present frame: "No[...]a" handwritten in pencil on a strip; label H.K.V. 2574, with "28" handwritten on it (cf. also inv. no. 14512, Nolde: Puppen und Papagei); in blue "R.[? or PM ligiert] Fehr"; label Kunsthalle Bern with inscription in blue "Haus Fehr"; round Swiss customs stamp: "Zoll II 27".