Rose - those scarves look fabulous on you, thanks for posting.
For the ladies who mentioned the slipperiness of the vintage 70s but who quite liked the size - have a look out for the cashmere/silk winter versions - they stay put. I'll try and post a pic later.
Also perhaps look out 70cm in 'soie scarabe' not sure of the spelling but it's 2 colours of silk woven together to produce one colour that changes slightly depending on the angle - used in some of the H ties for men, but no pattern just plain but with the effect of two colours - it is very 'poofy' and quite stiff not a bit like the drapey soft vintage 70s, here's a pic: