|Note_en={{Dating|google}} Related to publication of the same text on ''Boy's Live'' of this month. Advertising for a [[Duofold]] model, for its new unbreakable ''[[Permanite]]'' material. | |Note_en={{Dating|google}} Related to publication of the same text on ''Boy's Live'' of this month. Advertising for a [[Duofold]] model, for its new unbreakable ''[[Permanite]]'' material. |