I saw this on mastodon, it does not look like anyone replied to him. But he is looking for prototype photos of next hardware. I swear I have seen some posted here or the other forums. Can anyone help?
https://iosdev.space/@jonhendry/116458636986459337
I believe the pictures you're thinking of are these: https://www.nextcomputers.org/NeXTfiles/Images/Rare_NeXT_Hardware/
those are the only two I've come across:
https://bsky.app/profile/n4n0.ch/post/3lg4rigvfck25
https://bsky.app/profile/n4n0.ch/post/3lg4rwxm6k22d
taken from the book
Design forward : creative strategies for sustainable change
by Hartmut Esslinger
https://archive.org/details/designforwardcre0000essl