I have a Webb Corbett water jug. Looking at the mark, it has the mark dated 47-65 mark with 65 in the centre. On the site it says that the centre was marked up until 58 and was left blank between 59-65. Does anyone know if this is correct. I am of the opinion it is a 1965 piece but would like some clarity. Does anyone have a piece marked in the centre after 59. I cant put a picture on yet but will as soon as I am home. Thanks. Pete