Decimo Vatman Memory.

6V (4 x AA).

8 digits, green fluorescent.

4 function, %, square root, memory.

83 mm x 130 mm x 28 mm (3.25" x 5.2" x 1.1").

Made in Japan.

The % key is marked "VAT" for use in calculations of Value Added Tax within the EEC (European Economic Community).