Found this super cool Mac 128k prototype keyboard w IIc/IIgs key caps:
“This is a "one of a kind" prototype built at Apple's Accessory Products Division that was located in Garden Grove, CA. This keyboard was a prototype of a low profile keyboard intended for the original 128k style Macintosh. (This design never went into production.) I worked at this facility until it was sold in 1985 and acquired the keyboard during an employee sale.”
https://web.archive.org/web/20190429054910/https://alexsappleorchard.blogspot.com/
