Lifting eye?

[jbonina@nectech.com]

     What is a lifting eye on a TR6? It is flat piece of metal at the rear 
     of the engine to which (on mine anyway) the ground strap to the 
     battery was bolted to the block. It is about 3"-4" long, has a large 
     (1 1/2") hole on one end and then a smaller diameter hole below it. 
     
     I found this piece in the Moss catalog on page   6, it is part #16.
     
     What is it for?
     
     
     Jeff
     '73 TR6