Drawings or graphic reproductions of designs must be drawn up on a sheet of paper of which only one side is used; the parts left free must be filled in by hatching stopping at the very limit of the drawing and no more than 20 millimetres apart; the dimensions of the paper to be used are 21 x 29.7 or 42 x 29.7.
On this reproduction shall be mentioned all indications likely to specify the date and conditions of the creation of each design figured (date of creation or purchase, name of the creator and, if possible, of the first addressee).