Vtg Sperrylink Office System Hidden Message Computer 3.5 in Ceramic Mug
3.5 inches tall, 3 inches wide, 10 fl oz capacity
Computer screen on cup shows hidden message "Sperry Supports Children" when cup is filled with hot liquid.
Preowned - No chips, cracks or crazing. Good preowned condition.
Sperry was the manufacturer of UNIVAC (until UNIVAC split off to be it's own division). UNIVAC were the first computers sold to business and industry as opposed to just the government and research universities.