I think I may have sold you some bullets a couple years back for your Dad. Bully for him!
It is ok to post wants here which is why we have this section. Posting sales is a little different as we have the commercial site and generally do it over there.
That is a rare bird you are after. I have only seen a couple and don't own one, but I have the metal reusable cylinder they were fired out of along with the other slug pattern.
Good luck!