Hi All!
Nando,
Well, I've not actually used olive oil before (apart from cooking of course)
I'll have to buy some tomorrow
Jim,
Thanks for the research, it kinda confirms my thoughts. Well, I thought 1620-30, but a few years later is still fine really.
Manolo,
Thanks

To be honest I think the pommel is my favourite bit! Its such a beauty!
Michael,
Thank you for your research. To be honest (and without looking through my books which I don't have access to at the moment) I didn't think it was 'quite' a pappenheimer, so thats a most pleasant suprise!
The 'Bonhams' sword is an absolute beauty! Would that I could happen across one of that quality

I will try olive oil/silicon carbide paper, I can honestly say I'd never have thought of using olive oil to lubricate the paper.
I will certainly show off the results.
Philip,
Some great tips there! Especially the deer antler. I completely approve, they drop off naturally, and are great to work with. I'll have to fabricate a few 'tools' from some offcuts, as I'm actually working a piece to make a hilt at the moment.
I didn't know it was a traditional tool for Japanese Tsuba/metalworkers
Hotspur,
Well, I've not used it before either, but sounds like its worth a try.
Martin,
I'e always used aerosol penetrating oils as they hopefully WILL sink into the pits and stabilise the rust. I've never had a problem with them loosening deep rust like an acid though.
Nando,
That this fine weapon should have ended up like this is just horrible.
I don't think any beauty parlour could do much... but I do have some hopes.
Its a bit like watching England in the world cup, there will probobly be some sweat and tears, fingers crossed, prayers whispered... but in the end, mostly just a sad realisation of what 'might have been'