HP-28C/S

HP-28C/S

HP 28C Scientific Calculator from 1987 - A new beginning

Compatible with HP 28 Tri-colour Inkjet Cartridge (C8728AE)

HP-28C/S

NOS/NIP Hewlett-Packard HP-28C from 1987! : r/calculators

HP-28C/S

Hewlett-Packard HP-28S Handheld Electronic Calculator

HP-28S Battery Compartment Door – TeaWea – Calculators

HP-28C/S

HP 28S Advance Scientific Calculator # 705 – Casio 880