Very nice side discharge door removed from an Earthwise Model 60120, Serial Number YAL 3560457 cordless mower.  I was able to find an exploded view of the 60220 model and the part number for it is 8020-516202 but check with your own sources to make sure as this part is from a Model 60120.  One of the bolt heads is rounded a bit so I am including 2 additional bolts (slightly longer).  I have included 4 pics of the entire mower so you can see the actual complete mower that the part was removed from.