Elegant Paperweight in Bronze and Nero Portoro marble. Late 19th nero marquina paperweight, italian, 19th c Elegant Paperweight in Bronze and Nero Portoro marble. Late 19th "Grand Tour" Specimen Marble Paperweight, Italian, Late 19th Century at Elegant Paperweight in Bronze and Nero Portoro marble. Late 19th 1980 Vintage Italian Big Paper Weight in Black Marquina Marble For Sale. Nero Marquina paperweight with large centered micro mosaic of the Roman Colosseum. Grand Tour, Italy, 19th C. Style Number: B24A0096 Measurements 4. 37" long 0. 75" tall 3. 25" wide