The prior owner had a modern radio. Cut the dash. I found a vintage blanking plate on eBay and mounted it on some black plastic to cover the opening. A bit of a hack job but looks ok.The shift knob looks great. And, your entire dash looks great. I'm jealous, have a '67 flat dash as well. The interior has had a hard life.
My radio opening was gouged out at some point in the car's life. A normal sized blanking plate isn't going to cover the damage. Your radio blanking plate looks custom, can you tell me more about it?