The Microsoft Windows 95 Certificate of Authenticity (COA) OEM MPN 000-06681 and 95 page manual is a vintage item that serves as proof of the authenticity of the Windows 95 operating system. This collectible piece is a must-have for vintage computing enthusiasts who appreciate the history and legacy of Microsoft's iconic software. With its unique branding and vintage appeal, this COA adds a touch of nostalgia to any computer enthusiast's collection.