This is a BEAUTIFUL ROYAL COPENHAGEN DENMARK CHINA DEMI-TASSE SAUCER. It is a shaded background of blue with deeper blue and white dogwood spray. The Saucer measures 4 1/4" in Diameter. The back is marked Royal Copenhagen Denmark with a Crown. Then 3G11 - 3 wavy lines - NGX. It does have a hairline in it - but so beautiful it has been priced accordingly. For the mark on the back of the Saucer, the Kovels book on marks reads as follows: Royal Copenhagen Porcelain Factory, LTD. Copenhagen, Denmark Porcelain, Green 1922-present (1775-present). I would assume the 3G11 & NGX would refer to the pattern and maybe date. ENJOY!