Model: Fidelity Micro Chess Challenger
Manufacturer: Fidelity International
Year: 1984?
Est. ELO rating: 1300
Levels of play: 8
Type: Calculator

(click on pictures to enlarge them)

Travel chess, LCD with keypad to enter the moves and magnetic pieces. It's smilar to the Novag Solo, thou this one is smaller.
I know of another version of this model which has an extra row of keys. You can see it here: Alain's Zanchetta website
It's not a strong chess computer as you can see in the rating but it's an interesting unit and it's extremely portable.

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Ismenio's collection