Shock absorber identification?

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I have the opportunity to purchase the unwanted parts from a 31 Coupe that is being made into a hot rod. Unfortunately it is (was) a very nice car. He will only be keeping the body, doors, rear fenders and frame. The rest he is wanting to sell as one lot and does not want to part out individually. I plan on purchasing them, keeping some and selling the majority of whats left.
It has all four shock absorbers. They all look nice but I'm not familiar with this particular style. At least they are not the type that would have come with my AA. Are they correct or after market?

Thanks