Frou frou, you did a marvelous job by the looks of it! Thanks for posting both your process and your findings. I will definitely try restoring the sad crushed already-washed moussie that I bought years back, using your report, @bunnycat's recent advice, and of course @Chestnutty's old cautions and tips (I still think of her as the Queen of Mousselines!). I will definitely refrain from washing any of my others, however. For me losing the crisp texture of my vintage moussies is something I want to avoid as long as I can; I absolutely love the loft of those old pieces, which really does feel like walking surrounded by a cloud to me. Dry cleaning it is, with the lightest of touch-ups using my professional garment steamer in between. But for many, the softness and perhaps the decrease of volume will be desirable and make these pieces easier and more comfortable to wear. Those older moussies, especially 140s, are A LOT of silk, and don't have their own weight to help keep them under control the way a CSGM or even a 140 summer twill does.
It's so wonderful to have the reports and resources on here to make the right choice with all the variables in mind! Many thanks to all those who have reported their experiences and thoughts on the care and feeding of these incredible pieces.
It's true, La Rosee is amazingly special. There's only one thing that might be just quite as special, and I am currently awaiting its arrival.
I hope this parcel has a strong tailwind behind it-- I can't wait to see what might top that changeant Rosee.
Will verify with my SA, but, gosh, will be sad if they stopped making it. Will keep you all in the loop. I bought 2 boxes several years ago, I love the scent! I'd used up the first box lining drawers and shelves. The paper is gorgeous and thick, and the scent delicious, but the fragrance did not last as long as I expected, so have used the second box sparingly! Certainly much better longevity in an enclosed space (like in a box), but much less so in drawers or on closet shelves. I've not found anything I like as well for liner paper, so now use lavender sachets. The like the ones from MaiTai quite a lot, they're very long lasting! I also buy lavender in the bulk section of my natural grocer, and use it to fill small draw string bags I get at The Container Store. Easy to toss and refill as the fragrance dissipates. I also love the Wool & Cashmere Spray from The Laundress (it's cedar scented) and have used it to spay the lovely thick, but no longer fragrant Hermes paper. Less successful were the scented card stock cards I bought from The Laundress a while back. They were meant to be put in drawers, and I found the scent so overwhelming I could not use them! frou frou, thanks for your suggestion regarding Santa Maria Novella, will look at their wax tablets. 
Some of these look more blue-dominant in the photos, but they are definitely on the green spectrum IMO. I have several that I thought would be hard to sort into blue vs. green, but it turned out to be a clearer decision than I thought.
