TwoDua copiessalinan ofpeta maps byoleh Fra Mauro arediketahui knownmasih to surviveada. OneYang ispertama aadalah sebuah [[peta laut portolan chart]] in thedi [[VaticanPerpustakaan LibraryVatikan]], ([[Borgia|Codice Borgiano V]]) publishedditerbitkan byoleh Roberto Almagià intahun 1944.<ref>Almagià, discussing the copy of another map by Fra Mauro, in the [[Vatican Library]]: Roberto Almagià, ''Monumenta cartographica vaticana'', (Rome 1944) I:32–40; Heinrich Winter, "The Fra Mauro Portolan Chart in the Vatican" ''Imago Mundi'' '''16''' (1962), pp. 17–28.</ref> The other was recognized by Antonio Ratti as a copy signed by [[Giorgio Sideri|Giorgio Callapoda]] at [[Heraklion|Candia]] and dated 1541, of a lost chart by Fra Mauro, sold at auction in Milan in 1984<ref>Galleria Salomon Agustoni Agrati, 24 October 1984, 40,000,000 lire</ref> and now in a private collection, probably in France.<ref>Antonio Ratti, " A Lost Map of Fra Mauro Found in a Sixteenth Century Copy" ''Imago Mundi'' '''40''' (1988), pp. 77–85.</ref>
