Added: abstract of ZOOM71727
Added: My version of ZOOM ‘Hashi’. The ‘Ying’ rollerball is much too thick… a missed opportunity.
Pair of the week:
• Zoom 727 BP from 2003
• Zoom 717 0.5mm from 2009, thanks to @Kiwi-d
Hard to imagine but these Tombow designs are 20 and 15 years old now. I hope the rubber sleeves stay springy for a while longer…