It was not uncommon to swap letters but as we all have agreed it's an UFC so far.
The 500 NF blue is from Lamalou.
Working on the French mother of pearls.
Bummer you are "email free" at the moment.

I will be putting a 10k on the chipguide unless you prefer yours to be on it?

Thank you for keeping the hobby of items from before 1900 alive.
Jo