central bank of Ecuador, two interesting design overlays for the face and reverse of a 5000 Sucres note, possibly by Derek Friday for Bradbury Wilkinson, the designs measure 6.7cms x 15.6cms and are rendered in grey and red pencil on tracing paper, the face design is dated January 15 1983, and both have adhesive tape attached to the top and bottom edges, presumably to attach to other design overlays, clean and in good condition