The 1980s Hewlett Packard HP-11C Handheld Scientific Calculator is a vintage piece of office equipment that is compact in size, perfect for carrying in a pocket or bag. Made by the trusted brand HP, this calculator features a regular-sized LCD display for clear and concise calculations. With a power source of batteries, it offers convenience and functionality for everyday use. This model, Hewlett Packard HP 11C Scientific, is a classic piece of American-made office equipment that is both reliable and stylish.