I have just purchased a Darton Thermograph on Ebay, looked a good idea
at the time !
It has now safely arrived and appears to be in semi working order,
clock and rotating chart appears to work but the ink has all dried up
and I suspect the nib is damaged.
Just wondered if anyone had any links to a full working order device,
or some instructions regards the ink and nib.
Brief photo on here
http://tiny.cc/4z12x
Many thanks
Paul C
www.bramptonweather.co.uk
www.cumbriaweatherforum.co.uk