Other recent acquisitions are a couple wee adding machines. The smaller one is plastic and both adds and subtracts. The larger is metal and older. It only adds.

Well, you _can_ subtract within a digit, but carries won't propagate back.

#addingmachine #addingmachines

An interesting rarity: a Commodore C202 adding machine.

#RetroCalculators #Technology #AddingMachines #Calculators

https://twitter.com/DatassetteUser/status/1156809722856660992

@EdS