NEW TO EBAY HELP!!!!

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I have a set of china a cup, saucer, plate, and what looks like a soup bowl but I am going to assume its a sugar bowl that have the words "Nymolle Denmark Decor" signed by the artist A Midsummer Night's Dream is on the plate and the dates on all the dishes are 1759 and they all have their own individual serial number...does anyone KNOW anything about appraisal and/or description I could use?!?! HELP PLEASE!!