new prefix for new $20

I received a new $20 today with the prefix 'EYK'. Sent dr a message about it.

Found 3 of them and did the same (before I saw this message).

Also new prefix "AYW". I emailed dr about it.

As he is gone to Toronto for a short time, they may not be available too soon…I'm sitting on some AYW bills now too.

dr emailed me. The AYW prefix has been added.
Thanks dr :)