Giving fans a first look at the line on Instagram, Rosie wrote, 'How time flies! I have loved every single minute of it. Thank you to everyone who has supported and enjoyed the collections so far.'
Sharing the sneak peek with followers, she showed off three lace bras in gorgeous olive, mauve and silver colourways.
Matched with delicate lace pants, the silky sets scream swanky pants drawer.
The new Rosie for Autograph collection will launch in stores and online at marksandspencer.com tomorrow ( 9 Friday).
What do you think? Will you be buying Rosie's anniversary undies?
SHOP: TOPSHOP AW13 COLLECTION
LENA DUNHAM TAKES ON THE LITTLE WHITE DRESS TREND
AMY CHILDS SLIPS INTO FIGURE-HUGGING FLORAL PRINTS