I recall Taiwan ~1971, going into a store, new white cash registers with blue Nixie displays, they would ring it up then show you on the abacus, that the total was correct.
30 posted on 06/15/2019 2:21:05 PM PDT by DUMBGRUNT
("The enemy has overrun us. We are blowing up everything. Vive la France!"Dien Bien Phu last message.)