A friend of mine as a Triumph STAG 1971. These cars came with cork gaskets(for camshaft cover).
These are currently pretty cheap at around 5 UKP a piece, and available on order.
But the problem with these ones is that since they are cork, they don't last as good as rubber. Now nobody makes rubber gaskets of this spec.
So he is looking for a source in India who could make or arrange such a gasket.
So here are the details
1. The part in the GIF file
http://www.rimmerbros.co.uk/stag/images/ld17a.gif
Look at GEG457
2. Actual part link(price etc.,) :
Rimmer Bros. - Product Price Information
Some pictures of the part
