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Kingson+slide rule

Kingson (ca 1960)
Kingson, Hong-Kong
dimensions...........3,7 x 15,6 x 0,3 cm
weight..................70 g
digits....................6
material................metal
including a pencil
single sided
on the backside there is a slide rule.

Kingson (sterling) (4x)

Kingson (ca 1960)
Kingson, Hong-Kong
dimensions...........3,7 x 15,6 x 0,3 cm
weight..................35 g
digits....................6 ( 3pounds, 2 shillings, 1 pence)
material................metal
including a pencil
single sided

W Accurator

W Accurator
Hong-Kong
dimensions...........15,7 x 3,7 x 0,4 cm
weight..................40 g
digits....................6
material................aluminium
Single sided
Including a pencil