Decimo Super Vatman V.Sc. I.

AA batteries.

Display is 8 digits, green fluorescent in single tube.

Scientific functions.

Main integrated circuit: NEC uPD951C.

Made in Japan, about 1976.

There is also a Decimo Vatman V.Sc. I, without the "Super".

Grateful thanks to Leslie Hadden for kindly providing the photograph.