Theo Fennell Silverware*Sterling Silver Binary Adder

Sterling Silver Original Binary Adder, Mounted on Black Marble

“Model K” Adder (replica)

George Stibitz made the original version of this in 1936 on his kitchen table, hence the name “Model K.” Using scrapped relays from Bell Labs and strips of metal from a tin can, it could add two binary digits.

1 in stock