Children's school of science looking at something on MBL dock. Approximately 12 students and what appears to be two instructors. Children are kneeling over a trap door looking contraption on the dock, children are mostly dressed in stripes, with a few in plain white outfits,
Black and white. Back has number 599 typed on a sticker. Also, handwritten is "#406 Nursery School at Supply Dock"
Associated paper states "A group from the children's school of science on mbl dock. B-10