Seat Identification: '73 or '74?

Hello, all.

I am in a bit of a pickle. The ride is a '74 Duster base model with the /6. Nothing crazy about the body package; very generic. However, I was gearing up to replace the upholstery and bumped into an issue. Is this a '73 seat or a '74? Also, what would you call this type of bench seat? No adjustable headrest nor does it have a cup holder. Pardon the mess. She's been sitting a while.



Thanks for the help.