Missing Link Fink, a good friend of this site has recently obtained this piece of custom gold.
The problem being that nobody seems to have seen anything like it before!
Consensus of opinion has it that it was made here in England rather than over the pond in The Land Of The Free.
There is no method of fixing it to the timing cover, other than Duct Tape which is what's defying gravity at the moment, but that's not the final solution of course.
Personally I think I would dress the back side until the contour matches that of the timing cover and weld the two together. With a good weld and patient blending it should be a cool and rare head scratcher.
If anybody does recognise this part please get in contact or post in the comments.