What is the thing

[TLG]

https://media.zenfs.com/en/wealth_gang_aol_363/38706125067803cb9787438589651704

[The Noof]

Prototype MAD machine (Mother Aided Design)

[auggie]

I remember seeing one of those at home, Mom had one that Folded down into the cabinet/table etc.

[dogdayz]

That one looks a lot more modern than the one my mother had.

[Gates07]

the one that folder down was a Singer, was peddle power