Yup ASp. I know they sell Jaffa oranges here at certain times of the year. I couldn't tell you when though. I know when our fruit ripen but am seriously ignorant as to ripening of fruit from other countries. They just show up in the produce section - like magic (imagine awed music here).

EDIT: oh, and I just remembered (this is the next morning) that there are also Jaffa Dates. So now I'm thinking that this may be an importer's name.