What have you been doing for 2 years?

Researching History

Most of the credit for this goes to the previous owner in Australia, who bought the car as a resto project. He was kind enough to share what he'd found out. Thanks!
Here's what I know so far:

Porsche Cars Australia and Porsche Cars Great Britain have confirmed that it was delivered as a Signal Orange right hand drive 911S in the UK. Production completion date was 1 December 1969. 
Ian at Porsche Club GB has it in his records. According to him it was first registered as CLK 92H, with the LK signifying London.

Three Signal Orange UK S-es were registered early in the 70 model year. Mine has supplying dealer "Porsche Cars GB" on the CoA. Demonstrators and press cars? The other two are fully restored.

DVLA says that my car has not been registered here in the UK since 1983. 
Australian Customs say they have been tracking incoming cars by chassis number since 1989 and it must have been imported to Australia prior to that as it does not show up in their system.
So it seems likely the car originally travelled from the UK to Australia around 1983.

Starting at the other end of its life (2010), the car was sold by Exclusive Cars in Perth (Tasmania) to a private buyer shortly before the PO bought it. 
It was last registered in Tasmania as SI2687 in 2006.
The car was brought to Tasmania from Melbourne, having been bought at a Fowles auction around 2001, after which it sat for some time in the workshop of Berry Motors (VolvWreck) before being transported to Tasmania. By that time it was in the red 'wide body' guise.

It was last registered in Victoria on 22 February 2001 as NMH695. Porsche Cars Melbourne say it went through their workshop in the mid 1990s, although they no longer have detailed records from that time.

To get some pics into an otherwise colourless post, here are the two sister cars. 

First one, owned by a DDK-er who has helped me out on many occasions - thanks! 
This one has a chassis number about 40 below mine, and an engine number about 50 below. We've also compared "build" numbers (the numbers stamped into the dash, near the ashtray). All seems in order...

Second one. I don't know the owner - if you're reading, please do get in touch.
This car is one chassis number below mine. Perhaps they were nose-to-tail on the production line.
Photographed by me at Porsche Classics at the Castle, Hedingham.

If anyone has any history of my car based on the registrations I mention above...
UK 1969-1983?: CLK 92H
Victoria, Australia 1983?-2001: NMH695
Tasmania, Australia 2001-2010: SI2687

... or any other info about the sister orange 70 S-es, I'd love to hear it. Please get in touch via the contact form on this site.