|Note_en=Invoice of the ''"A. Norsa & C."'' company, [[Kaweco]] italian exclusive agent for the [[Kaweco]] and [[Ko-Mio]] pen and pencils. {{Source|original}} | |Note_en=Invoice of the ''"A. Norsa & C."'' company, [[Kaweco]] italian exclusive agent for the [[Kaweco]] and [[Ko-Mio]] pen and pencils. {{Source|original}} |