Looks like a readymag to me, i know they are in use.
type it in on WGC
No. 6&7 on the page
But it could be a mag coupler for all i know.
Edit:cos i don't be very good at the computery stuff
looking pretty good Doc.
you can never get it 100% though which is a shame but nevertheless you have done very well.
i think a rep point is in order for your hard work