[Edit. Sebastien's in luck! François ID'd them as the model 71 lounge chair, designed by Ms. Bodil Kjaer in 1959 and produced by Hovedstadens Mobelfabrik. Thanks François! Here's an auction result for one chair, where the hammer fell at ~$1,000.
Any chance, Sebastien, you inherited a Kjaer desk too? The one featured in two James Bond flicks, and that Prince Philip uses at Sandringham Castle? You'd be sitting on $30,000+...]
Sebastien’s looking to sell this pair of chrome band flat bar lounge or club chairs, purchased in the 1970s… but has no idea who the maker is.
They’ve got a bit of a Milo Baughman for Thayer Coggin feel to them, but aren’t one of his designs I’m familiar with.
The cube style base also riffs slightly on the Wegner JH 801 chair below.
If you’ve got an ID, please let us know in the comments!