Now that's a model number: Macintosh Model M0001. (Apple built in just a teensy bit of headroom for future models.)

These early labels are sad tidings— even in Apple's younger, wilder days they didn't want people to service their own gadgets.

That FCC label means business: if you're going to tinker with your Mac, you run the risk of local radio interference. (We're guessing Pandora wasn't a viable alternative in 1984.)