Impressionist scene featuring punts on a canal / lake

Impressionist scene featuring punts on a canal / lake; foreground, water with, centre right, a punt with passengers? and an oarsman and, on the right, two tall mooring posts?; middleground, a second boat, canal? walls and lock gates?, background, on the right, two houses viewed through trees. Painted with washes of blue, green, red and purple with form delineated in black in brush and ink. On the reverse is a brush and ink drawing of the heads of two bald, elderly men