I have this nice Tasmanian arts and crafts style server very similar to that made by Sargison's, however the maker's mark is 'MM', rather than Sargison's, and so far MM eludes me, hence this message to the forum. Perhaps MM worked for Sargison's and then struck out on their own after Sargison's retirement in 1980. I'm aware that others made items very similar in design to Sargison's as well, so maybe there's something rather more complicated going on. The full marks read SILVER MM HOBART.
Any information would be much appreciated, especially the maker's name!