Set of 6 Østergaard dining room chairs

Set of 6 Østergaard dining room chairs, model no. 58, with new upholstery. Danish modern design from the Mid Century decades.
Harry Østergaard designed these chairs, made of rosewood, in the 60’s for Randers Møbelfabrik.
The frame is numbered. There is no further mark of origin.
Some traces of use and a visible restoration on the backside but furthermore in a good vintage condition.