Opaque orange base swirl patter "Peltier NLR Tiger" with very fine silver av. in the black ribbons., shows up much better in the sunlight. But no, very opaque, no light will pass through, the orange base glass swirls as well as the black ribbons. I traded Sami Pelt for Pelt at the Seattle Show in 2017, I got a few others as did he, my avatar can be found on page 72, lower right hand corner of the new Pelt book by Sami Arim, Mike Johnson & Gino Biffany "Peltier Marbles an American Legend" "Two Color National Line Rainbos" Even shows the same view except it's turned on it's side in the book.