Brand new Mid-State Quick Attach Tree Spade/Root Grubber Bucket. 
It is a heavy-duty tree spade and root grubber for transplanting trees and removing roots.
 
Specifications:
Height: 13" below plate frame / 16" above at top of sides for bucket.
Width: 14" where teeth are at the front of the spade - Goes to 20" at top of teeth on the spade (see pictures)
Length: 44"