This is a IBM 704 introduced by IBM in 1954. 1:16 scale model, hand made in mostly polystyrene.
The IBM 704 was the first mass-produced computer with floating-point arithmetic hardware. The 704 used vacuum tube logic circuitry and core memory.

@6502B
@kenshirriff

I suspect that you and Marc might appreciate these amazing scale models 🙂👍

@6502B Also notable for being the first machine on which FORTRAN and LISP were implemented -- the first machine-independent programming languages. (COBOL was the first practical language deliberately made that way, but by the time it shipped, there were already FORTRAN compilers for multiple machines -- the people who threw the language together had done it by accident!)
@6502B - A predecessor, the ANSF Q-7 was used for SAGE. It was programmed at SDC (Santa Monica) and I later worked in the building that once housed a Q7 (and later the Q32.)
@6502B it's missing the arduino inside to simulate the computer 😆
@6502B Ok, now I absolutely must own this.