You are right. I was looking at a wash scarf : https://www.hermes.com/us/en/product/sous-l-egide-de-mars-wash-scarf-90-H072776Sv41/. My mistake.
Data point: for me certain 90s haven’t made the $10 jump yet.
Case in point: https://www.hermes.com/us/en/product/hermes-flagship-scarf-90-H004091Sv16you