Does anyone have ideas about what FMH can stand for? l have some English Duraline Grindley plates here (on the back says Duraline Super Vitrified Grindley Hotelware England Loftus Moran Pty Melbourne).

On the front of each plate is a border and the initials FMH:

Would like to know what the FMH is. l've searched for hotels but nothing comes up.