Vintage Exactra 20 calculator from Texas Instruments.
Case is in good physical condition with some minor scratches and some scratches to the button faces. The screen has some small scratches as well (close-up photos in this listing's gallery). The orange metal number plate also has minor scratches throughout. Additionally, the plastic has probably faded or ripened over the years and would not match the original color when it was introduced in 1974.
The battery compartment lid is included and snaps on fine. The battery terminals themselves have wear, but show no indications of rust or corrosion (also noted in image gallery).
Overall, the calculator works fine, it's clean, and it's in good physical shape. All buttons and functions work well. The classic color combo and LCD screen makes this a striking display piece and a Holy Grail of calculator collecting.
From calculator.com:
Texas Instruments exactra 20
The Texas Instruments exactra 20 is an arithmetic calculator with 7 digits precision and algebraic logic. It has 4 functions, 18 keys, and an LED (light-emitting diode) display typical of calculators of this era. The power source is 3xAA batteries. The calculator was manufactured in USA.
Facts at a glance:
Feature: Value
Type: Arithmetic
Functions: 4
Keys: 18
Precision: 7
Logic: Algebraic
Display type: LED
Length: 130mm
Width: 73mm
Thickness: 33mm
Power Source: 3xAA batteries
Country: USA
Year introduced: 1974
Year discontinued 1974