The product is a vintage Real Photo Postcard (RPPC) featuring a view of Berlin, Germany in 1907. This original postcard showcases a real photo of the city and was posted in 1907. Measuring at a standard size of 5.5 x 3.5 inches, this piece of history is a single unit and made of paper. With a focus on topographical postcards, this collectible item offers a glimpse into Europe's past, specifically highlighting a view of Berlin during the early 20th century.