If you are in London UK a visit to Pettycoat Lane with several good photos will help you identify the pottery and the maker and a potential antique value .. If not in the UK then more research into the name of the company and it is possible that the bordered name "" FLORENCE "" is the name or series of those pieces of white with blue floral . ... some antique and flea market dealers in the USA are very knowledgeable and your local public library has more info than you think == give them a look see .... some good photos will be easier to haul around and they don't break ....