Elegant Paperweight in Bronze and Nero Portoro marble. Late 19th Grand Tour Inlaid Specimen Marble Paperweight, Late 19th Century at 1stDibs Elegant Paperweight in Bronze and Nero Portoro marble. Late 19th 1980 Vintage Italian Big Paper Weight in Black Marquina Marble For Sale An Italian Grand Tour Porphyry and Sienna Marble Paperweight, late 19th. 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