I have just been given this moped by a good friend in th EACC. Requires one or two parts but nothing major. Shouldn't think it will take much to get it running. But to be honest I have never heard of or seen one of these mopeds before I believe it to be Italian in origin. And I think its very rare.
Califfo is the model name; the make will be Atala or Rizzato. Like a lot of Italian bikes they have proprietary engines like Minarelli. Because bikes were made using bought-in parts, you need to know what parts are needed before you can work out likely sources.