calculator; pocket (Wham branded)

White pocket calculator, solar power panel to proper left along top in blue band with display on proper right side. Below is numbers and symbols in blue text and on proper right below blue band is wham logo in red with blue background. Reverse of the item is blank.
Part 2 of this item is a plastic sleeve for the calculator is it clear on one side and black on the other.
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Object Detail

Signature & date
Printed on the front is "WHAM".
Associated person
Associated place
Measurement type, part and reading
Dimensions:0 - Whole:H 5.4cm (H 2 1/8")
Dimensions:W 8.5cm (W 3 3/8")
Dimensions:D 2cm (D 13/16")
Dimensions:Part 2:H 6cm (H 2 3/8")
Dimensions:Part 2:W 9cm (W 3 9/16")
Accession number