Study of a group of sixteen figures

Study of a group of sixteen figures viewed from the rear. The group includes a man, women, a baby and boys. The latter, centre right, stand with their arms resting on each others shoulders. On the left are two seated figures. All the figures look in the same direction. Pencil sketch in upper left corner of a head. Drawn in outline with brush? and ink with wash for tone. Paper has the watermark 'PM'