Hi Bastiaan
thanks for your information
I have been transferring loads of files here from 2 x old laptops and and old ipad trying to consolidate my reference material onto a new laptop
The clips came up as a question and since I posted I found some additional information - linked to what you have posted
So far I have found 9 part numbers for clips - steel and rubber - some with varying quantities but the reference material doesn't indicate which contact it was covered under - that's the next job
I did an enquiry to have these made with a local spring makers firm, but 15 euro's a piece (per size) was too much for me! had to buy 30 pieces at the time.
