This is a 1000 piece jigsaw puzzle entitled "The Cottage By The Bridge" by The Macneil Studio from W H Smith, part of the Life in the Country series. It is approx 49cm x 68.5cm.  The jigsaw and the box are in very good  condition, although it does have the word "complete" written on the box, see pictures.  It is all complete and has been tested.

Thanks for looking.