@Bi11Hudson thanks for confirming that. I was comparing that gear with this silhouette and couldn't quite tell. Now I know which gear cutter set to buy if I decide to make some odd ball change gears for the lathe.
Solidworks has an import photo option. You just place it onto a plane & then start a sketch on the same plane. I just draw some lines & curves (if I'm feeling adventurous) & then measure the angle. I've never actually tried to convert one into geometry.So I tried the scan and import method, I failed. The scan (on my flatbed scanner) comes out as a jpg. Tried converting it to SVG or DXF using online converters and then tried importing it into Fusion 360 but the conversion makes a very crude looking eclipse. Attached is the scanned gear if anyone's curious enough to want to give it a try.