Our distant ancestors were very clever.

[gridlore]

"California Earthquake (2 cam) Grateful Dead - 10-20-1989 Spectrum, Philadelphia, Pa. set1-10" (Watch on YouTube)

But did it have a USB port?

Comments

[cmdr-zoom.livejournal.com]

Thanks to you for linking this, and to princeofcairo for first bringing the original to my attention in his old PYRAMID column.