The product is a collection of five vintage Popular Science magazines from July, February, April, August, and November 1968. These magazines are in English and were published monthly. They feature illustrations and are part of the science genre. The magazines are not signed and were distributed through paid circulation. Each issue includes contributions from numerous authors and covers a variety of scientific topics. This rare set offers a unique glimpse into the world of science and technology from the late 1960s. Good Luck