The French Impressionist painter Pierre-Auguste Renoir visited Guernsey in the summer of 1883 and painted about fifteen pictures there. This maximum card was issued by the Guernsey Post Office. The card reproduces one stamp in the set of five Renoir paintings released to commemorate the Centenary of Renoir's visit to Guernsey. The issue date was September 6, 1983. The other four stamps in the set are a squarish shape and feature landscapes.
The original of this Children on the Seashore painting is in the Museum of Fine Arts, Boston.
This is a post for Sunday Stamps at Viridian's Postcard Blog