Left one, more teeth seems to be what old vintage razors used but can be harder to manufacture because small cutters while MFG can break easier. 316L Stainless steel is not a nice metal to thin slot gang mill and a large amount of coolant is needed to keep the cutter cooled and sharp for proper machining success from my experiences!
Have some great shaves!
Not sure I'd call one industrial over the other, and equate them to the Fatip vs Schone, same razor, but the Schone has fewer/wider teeth vs the narrower, but higher count teeth of the Fatip.