Btrett B Trois/WLP 644

Anybody know where I can pick some of this up? I know it's seasonal.

I have a beer that I was planning to brew a little over a month ago with it (when one of the places I buy from still had it) but a new job has really put the squeeze on my brew schedule. I'm now relatively settled in and itching to pick up where I left off but I can't seem to track down any 644. I'd take an expired vial so long as it was stored properly-I've nursed elderly yeast back to health in the past.

If anyone knows of a source please let me know.

Thanks

The folks in this thready might be able to help: https://www.homebrewtalk.com/f127/wlp644-brett-b-trois-326861/

I have some beers bottled with 644, but NY's a long way to ship a bottle of pale ale.

Found it!