I have a red Baby Bjorn Original Baby Carrier, that has been used a maximum of 3 times. It is like new, the cover is new. I haven't used the carrier more as I have a back problem and a front carrier hurts me - so I have a hip carrier now.
Carrier can be used parent facing when they are small and then out facing as they grow.
I Paid about £70 for these new last summer.
£30 including postage.
Will separate £20 for carrier, £10 for cover.
http://www.babybjorn.com/en-gb/Eng/products/Mobility/BABYBJORN-Baby-Carrier-Original/