Thanks for sharing mate,cartridges on my mind lately,desperate to resume but my arms and hands have been going through extraordinary Gout. the workshop chaos is lessening. A new drug is easing swelling and pain.Two of the best makers of pens in Australia are descending tomorrow from Brisbane and Melbourne. WE have two exciting meet ups with a great Engineer and a World Class blank maker,we are all friends. I turned over in my stash a very interesting Cartridge made in Aus i will fashion into a fountain pen and having tracked down a kit that wentout of production a clumpy Pau Shell fountain is on the to do list...I bought the blanks a tear ago they were cast in West Australia for the old Junior Gent 2.One Aussie firm picked up and called it Castellar.
There are two heroes in Cartridge pens you and Woody in The UK and Les Elm in Canada. Kind regards Peter.