I have this NOS battery. Date code J4K, it’s a Y59 E-3000. It has no caps, just the battery and the box it came in. I don’t know if this is valuable to a Buick owner or not. I will just list it here and if it sells immediately I priced it to cheap, if it gets no replies I priced it to high. $200 plus shipping. Located in Omaha NE. Thanks, Brian