1975 Illinois Duck Print, 'First of State' (for IL1), 'Mallard' by Robert Eschenfeldt, unmounted print, overall size 15x12½", with unused example of the issued stamp (Scott retail $575.00), pristine, fresh and extremely fine, an extremely rare 'first of state', a key print to a complete set, insurance list price $4,600.00 plus $575.00 Scott retail for the stamp photo