Excavator Wedgelock Tilt Bucket. In good condition, has plenty of wear left in cutting edge and sides dont appear to have been worn down much either.  All pins and bushes look to be in good order with minimal wear.
Looks to have had a repair where the hitch attached to the main bucket as shown in pictures
 
Not sure which size machine its for, measurements are below
50mm pins
300mm pins centres
170mm ear width
 
Bucket width 1.6m wide
 
Believe it may be off an 8 ton Case