Just arrived today from my good friend, fellow collector, and display cabinet builder extraordinaire Brian Riecker. I have been trying to acquire a complete CREB145 shop number set in shades of green for many years. Many of the pieces I have assumed simply don't exist, much like this shop number 13 piece. I'm still looking for a 5, 12, 15, 16, and 17 (the 15, 16, and 17 are single shop number pieces only; I have double numbered pieces of these in green).
Brian was the first to supply me with my first CREB145 shop number 5 piece back at the 2001 Atlanta National and now he finds me a green CREB 13!! Purchased on St. Patty's Day no less!
This piece is a  style and is 13d for Lee's benefit. Lee will reveal all when his book is published. It's the first green 13 he's seen as well.