|Note_en=published also on N. 51 (1921-12-18). Right page. Side to [[:File:1921-12-Waterman-Models-Left.jpg]] for this last number. Advertising for the models of that time: [[Waterman 1x|1x]], [[Waterman 7x|7x]], [[Waterman 4x|4x]] e [[Waterman 5x|5x]] in different sizes. | |Note_en=published also on N. 51 (1921-12-18). Right page. Side to [[:File:1921-12-Waterman-Models-Left.jpg]] for this last number. Advertising for the models of that time: [[Waterman 1x|1x]], [[Waterman 7x|7x]], [[Waterman 4x|4x]] e [[Waterman 5x|5x]] in different sizes. |