Vintage Red IKEA? Wooden Swivel Roller Office Chair

Red Vintage Wood Swivel Roller Office Chair. I believe after some quick looking online it’s from Ikea from the late 70’s or 80’s. I got it used and used it myself for 20+ years. My son’s been using it in his room for 4 years. Besides some cosmetic issues (scratches) it’s in very good condition. The back is adjustable (both in height and angle) and the wheels roll great. It is missing one screw underneath (back right corner - see picture) that holds the wooden seat on the base but can easily be replaced. I would love to keep it myself but my sons just got a new chair and we don’t have the space to keep it.