Jens Risom chairs are from IBM, Rochester MN. Frames are stamped Jan 1968.
These chairs comprised of 2 parts; a wood frame with screw-attached upholstered seat+back frame. I have 3 that have had the outer wood frame reglued and refinished. The seating/back piece has not been reupholstered on any 3 to allow for individual customization by the buyer.
Each upholstered piece is made up of sinuous spring systems with spring cover of burlap and foam with muslin before final fabric. Many new fabrics, vinyls or leathers would be appropriate for these simple but beautiful and ergonomic frames. Selling as-is ... that is, wood frame refinished, upholstered seat in need of new padding and final fabric, ready for your customization. You may certainly ask for my cost to fully restore/reupholster these wonderful Jens Risom chairs or take them to your favorite workroom.