Here is a working Apple ADB keyboard and mouse, known as the Apple Keyboard II (M0487) and ADB Mouse II (G5431). The M0487 keyboard was introduced in 1990 and sold through 1995. The G5431 mouse was introduced with the Apple IIgs in 1986 and sold through 1993.
pictures are representative of the keyboard and mouse that you will receive. They are not yellowed, and both feet on the keyboard are intact. I have successfully tested the keyboard and mouse you will receive with a Mac Performa 636CD running System 7.5. You will also receive a coiled Apple ADB cable as pictured.
I offer a 30 day return privilege and free shipping within the U.S.I will make sure that this item ships securely and promptly.