Thanks, dm-17. Yes, those are proper oil seals with the full rubber enclosure, lip to OD of the metal frame. If those had been in the bag, I would have whined a bit to my wife about the price then put them in knowing I was done for another 20 years. You are wise to horde those.
Having installed thousands of seals in thousands of hydraulic components, I don't have much faith in these "OEM" parts.