Rotring Tikky II ballpoint. not many mentions here. these just arrived from ebay, NOS very reasonably priced. Already loaded with a Otho flash dry and an easy flow. curiously the Rotring jumbo
Rotring Tikky Mechanical Pencil - 0.5 mm - Blue | JetPens
Rotring Tikky II Blue Ballpoint Pen and 0.5 MM Mechanical Pencil Set-Montgomery Pens Fountain Pen Store 212 420 1312