The IMSI TurboCAD Designer DOS CAD Software Boxed Set is a vintage computing product that includes both manuals and floppy disks for TurboCAD. Produced by IMSI, a United States-based company, this boxed set is a rare find for collectors and enthusiasts of vintage computing technology. With its nostalgic charm and historical significance, this product offers a glimpse into the early days of CAD software and serves as a valuable addition to any vintage computing collection.