Answer to this:
It appears that the relay shown by the OP is a D16Y early relay.
The D46Y relays have a black (opaque) cover, whereas the D16Y relays have a clear cover.
True, my head light relay have a clear cover. It's not black.
I hope I've answered all/most of the questions I got in the thread. Once again THX all of you to be so helpful. I'm impressed by all the posts for trying to help me!! :-) :-) :-)