|Note_en=For [[Biro]] ballpoints and [[Montblanc]] fountain pens and mechanical pencils. Page 16 and 17. Show advertising material and a [[Advertised Model::Montblanc 644|644]]. | |Note_en=For [[Biro]] ballpoints and [[Montblanc]] fountain pens and mechanical pencils. Page 16 and 17. Show advertising material and a [[Advertised Model::Montblanc 644|644]]. |