Set 4 Charles Pollock Armchairs Designed by Charles Pollock for Knoll

Set of four executive armchairs design by Charles Pollock for Knoll International. These chairs are signed and dated 1977 with original fabric. All chairs are in good vintage condition with normal wear consistent with age and use. Two chairs come out of the base if lifted otherwise in great working/swiveling condition. 
W 26.25” x D 22” x H 32” x SH 18”