20 32 A_Cardan_grille_is_made_from_a_s heet_of_fairly_rigid_paper_or_pa rchment,_or_from_thin_metal._The _paper_is_ruled_to_represent_lin es_of_handwriting_and_rectangula r_areas_are_cut_out_at_arbitrary _intervals_between_these_lines.A n_encipherer_places_the_grille_o n_a_sheet_of_paper_and_writes_hi s_message_in_the_rectangular_ape rtures,_some_of_which_might_allo w_a_single_letter,_a_syllable,_o r_a_plane_word._Then,_removing_t he_grille,_the_fragments_are_fil led_out_to_create_a_note_or_lett er_that_disguises_the_true_messa ge._Cardano_suggested_drafting_t he_text_three_times_in_order_to_ smooth_any_irregularities_that_m ight_indicate_the_hidden_words!! ******************************** ******************************** ******************************** ******************************** **********.************.******** *..******..***********.********* *************.******.*********** **.*********.***.*************** *****.************************** ******.************************* **********************.********* ******************************** ****.*************************** ******************************.* ******************************** ******************************** **********.********************* ******************************** ********.***************.******* ******************************..