Archive of Collections

Details and Image

TypeModel No.MakerCountryConstruction
DateScale LengthArea of Use
Slide Adder
Six Cheap Slide Adders
USA and Hong Kong
Plastic and Metal
Adding and Subtracting

Notes: "Cheap? Cheap and cheerful is more like it. While these adders were all quite cheap when new (one word: plastics), they all work, although some have gotten a bit stiff with age. None of these are built with the quality of an Addiator brand slide adder, and as such these represent the “novelty” end of the slide adder market. The six adders comprise two versions of the Baby Calculator, a Magic Brain, a Tom Thumb, a Compact Calculator, and one simply marked "Calculator"

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