Digital BW, The Print

I just got an email from a couple of friends of mine in Paris. One is pretty well 
known portrait photographer and the other is a great fine art printer who prints 
black and white work for famous French art photographers.

They can't find #3 Spot Tone and are freaking out. I thought it was funny at 
first, but it's tragic to them. When I looked around Atlanta I couldn't find any 
either!

Does anyone have a good source for it. They are in real need. 

Thanks,

John