Seat Belt Question

Kinda a silly question, but on my dad's 70 Swinger with factory bucket seats, Did the front seat belts go in through the sides of the seat where the seat hinges? I ask because the interior has been messed with before and one seat has the belts running through the seat and the other side does not. Just trying to make things correct. Pic is for reference. I'm actually talking about the seat belts that mount on the trans tunnel, I couldn't find a decent picture of a seat from that angle.

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