The Icon of Our Lady of the Sign (Greek: Panagia; Old Church Slavonic: Ikona Bozhey Materi "Znamenie"; Polish: Ikona Bogurodzicy "Znak" ') is the term for a particular type of icon of the Theotokos, facing the viewer directly, usually depicted full length with her hands in the orans position, and with the image of Christ as a child against her breast. [1]. This type of icon is also sometimes called Platytera (Greek: literally wider or more spacious); poetically, by containing the Creator of the Universe in her womb, Mary has become Platytera ton ouranon: "More spacious than the heavens". The term the Virgin of the Sign or Our Lady of the Sign is a reference to Isaiah 7:14 ("Therefore the Lord himself shall give you a sign; Behold, a virgin shall conceive, and bear a son, and shall call his name Immanuel"). Such an image is often placed in the apse of the sanctuary of an Orthodox church above the altar [2]. As with most Orthodox icons of Mary, the letters MP  OY (short for MHTHP OEOY, Mother of God) are usually placed on the left and right parts of the icon.
Source - Wikipedia http://en.wikipedia.org/wiki/Our_Lady_of_the_Sign

Made in Poland this icon is hand painted and covered with a beautiful cover of silver plate featuring fine bas-relief.