Woohoo!! A new parcel just arrived in the post for me, here's a couple of pics of the parcel and what's inside it:
Okay, so what is this and what is it for?, this is a Kahler String Lock which mounts on a guitar headstock just behind a conventional nut, it does exactly the same job as the Floyd Rose Locking Nut, it is just an alternative design, I bought this on eBay a few weeks ago so I can use it on another 80's Superstrat build project I'm going to be working on.
And here's a pic of the actual guitar that's going to be used as a platform for the 80's Superstrat build project: