A suspension lug for a drop handle or bail handle. Lugs of this type were fitted to sheet-metal vessels (e.g. chafing dishes, kettles, buckets, etc.), as indicated by the very short integral rivet at the base.
For examples of generally similar lugs with vessel handles still attached, see UKDFD 8668 and UKDFD 17636.
For another similar example, see UKDFD 10426.