An Eco just closed on Ebay for $122, with 17 bids. No mention of it being NOS, but it looks nice. The pictures are carefully arranged not to show the backside so I wonder if the washer is present.

Somebody mentioned in another post that Japanese collectors are fascinated with French components, and this is driving up the Ebay prices. I guess compared to two grand for an Ideale saddle, this Duopar auction is downright reasonable!