Keith thanks for the pics. As far as I can see it doesn't match the Schneider I have, it's not fibre ish powderish splotchy enough. It's also different to the pink Stevens and Williams cloudy in the way the colour has been done , presumably you've compared it to yours anyway.
It doesn't look like the few Nazeing pieces I have either, but presumably they did make different ranges/types.
Sorry, can't help more.
m