I've come into possession of six 35 year old Knoll Studio chairs that I want to sell. I'm well aware of the original price of the chairs as the tag is still on the underside. The original owner was in the office furniture business and has kept them in storage for 30+ years. They're in terrific condition other than a minor amount of dust that can easily be cleaned off.

My question is... How do I go about selling these to someone who will appreciate their value? I'm having trouble with Facebook and similar marketplaces. Am I getting fleeced for selling them for 1/12 of the original price? The people who are showing real interest are vintage resellers and will double their money off me. How/where can I get a fair return on these chairs?