Correct 4-speed shifter in a 1969 Dart?

Yes. It should say HURST, embossed vertcally. I believe
the handle shape for the basic floor shifter is straighter, cause the floor hole is left of center a bit. It is different from the center console shifter handle which bends over to the middle, to fit through the center area. See pics:Screenshot_20200617-105701_Google.jpg Screenshot_20200617-105625_Google.jpg