In the early 70s I shopped at a bike shop in Honolulu that carried Mondia Specials as a stock item. Every one I saw--and I saw quite a few of them--(which the shop got straight from the factory--or from the importer, anyway)--had Mafac Racers as the stock brake. I don't doubt that Mondia used other brakes as whim or market dictated (or as retailers or importers requested) but during the time I saw them (1971-1975 or so) they all had Mafacs.
Charles "