Mars Con­fectionery Un­named promo­tional calcu­lator


Brand: Mars Confectionery
Model: Unnamed promotional calculator
Type: Calculator
Picture: Mars Confectionery Unnamed promotional calculator
Batteries: Solar cell
Lifetime: Introduced: 1993
Terminated: 1994
Notes: M & M promotional calculator with memory, percentages and square roots.

The coloured keys are not placed randomly, all samples I found using Google Image Search have the same colours on the same keys.