Ecole flamande, après Peter Paul Rubens (1577-1640): L'enfant Jésus et Jean-Baptiste enfant dans un paysage, huile sur toile, 17ème/18ème siècle

Work: 24,5 x 15,1 cm

Frame: 36,6 x 27,7 cm 

Inscription lower left on the banderole 'Ecce Agnus Dei'.

This composition is known through an enormous amount of copies, mostly in a lying format, while the figure group is mirror reversed: this copy probably made after a print (link).