Fred’s Shed, Find The Differences No 14. Puzzling with a twist, can you spot the fifteen differences between the picture on the box and the completed jigsaw? Designed And Manufactured In The UK for House Of Puzzles. The House of Puzzles is a British designer and manufacturer of high quality jigsaw puzzles. Their jigsaws feature their own unique and varied puzzle pieces to add to your enjoyment of their puzzles. Box size 38 x 27 x 5cm. Completed puzzle Size, 69 x 48cm.