Found this montblanc and aurora between my grandpas old things. They haven't been used in many years. I bought the ink cartridges for both. The guy at the store told me to
Amazon.com: Aurora Refills Blue (5 Cartridges Per Box) Fountain Pen Cartridge - 129 : Office Products
inkstable.com | Aurora Hastil – An almost forgotten masterpiece
Kelvin Pang on Twitter: "#廃盤ボールペン From https://t.co/aCHZR7mIoL: Schneider Express 225, Express 75 & Herlitz ballpoint refills. Fits #vintage German pens like Geha, Reform & Rotring Tikk Kuli from the 1950s! Express 225