|Note_en=''"D. Blazer & Metz N.V."'' catalog for [[Biro]] ballpoint and [[Montblanc]] fountain pen and mechanical pencils. Page 14 and 15. | |Note_en=''"D. Blazer & Metz N.V."'' catalog for [[Biro]] ballpoint and [[Montblanc]] fountain pen and mechanical pencils. Page 14 and 15. |