Hatteras OE anchors?

The anchor roller currently on my boat was sold to me as used Hatteras original equipment. It certainly is heavy enough to belong on a Hatt and it’s virtually identical to the roller on a 55’ convertible near me. I’m wondering what style of anchor Hatteras typically provided on new boats as this roller can hold a danforth type anchor but the dimensions certainly aren’t ideal. It appears to be shaped for a delta or spade type. If this roller is similar to yours, what anchor shank fits best? I’ve got my eye on the Australian Sarca Alloy Excel.

Exact same anchor I had on Pau Hana before I swapped for a 77KG Bruce that someone put on the free table at our marina (and I snapped it up within 10 minutes). Both anchors lost when Ian destroyed the boat.