This beautiful authentic, early, 4-wheel, Black DKR on a Herman Miller Office base has a dark grey upholstery. It’s a collector item and a museum piece.
The chair is rotatable and can be adjusted in height. The Upholstery is in good condition, a button is missing. The base shows some small  traces of wear like some rusty spots. One screw is missing under the seat. which is not necessary since it’s as stable as with all.

The max height is 92 cm H x 55 cm SH x 49 cm Width x 54 cm D

The min height is 83 cm H x 46 cm SH x 49 cm Width x 54 cm D