Picnic on the Riverbank, A

This fully interlocking plywood jigsaw puzzle features a tranquil riverside-picnic setting, painted by the Belgian post-impressionist artist, Fernand Toussaint (1873–1955).
Many thanks to Alan Sudbury for the supplied images and details.

Artist: Toussaint, Fernand
Date: c1980's-1990's
Brand: Optimago
Material: Plywood
Nationality: British-England
Pieces: 500
Size: 23 1/2" x 15 3/4"
Theme: Rivers
Title: Picnic on the Riverbank, A