This 80's vintage calculator has an 8-digit LCD display and comes with the pictured case. The calculator works and is in good shape but is missing a case screw (see photo).

**Price: $6.99**

This 80's vintage calculator has an 8-digit LCD display and comes with the pictured case. The calculator works and is in good shape but is missing a case screw (see photo).

**Price: $6.99**

This FX-7400G+ is a later model with more modern looking rounded (rather than square) keys. In addition to graphing, the calculator can do fractions, single and two variable statistics, programming and has a full alpha keyboard.

**Price: $11.99**

This FX-7400G+ is a later model with more modern looking rounded (rather than square) keys. In addition to graphing, the calculator can do fractions, single and two variable statistics, programming and has a full alpha keyboard.

**Price: $11.99**

This calculator does 2 variable statistics, fractions, number base conversions / operations and more. It can run on solar energy or battery power. Included is a hard plastic protective cover.

**Price: $5.99**

This calculator does 2 variable statistics, fractions, number base conversions / operations and more. It can run on solar energy or battery power. Included is a hard plastic protective cover.

**Price: $5.99**

This vintage HP business calculator features a 12 digit display and has many business functions including present and future values, cash flows, depreciation, bonds, amortizations, and internal rate of return. In addition, the calculator does 2 variable statistics.

**Price: $17.99**

This vintage HP business calculator features a 12 digit display and has many business functions including present and future values, cash flows, depreciation, bonds, amortizations, and internal rate of return. In addition, the calculator does 2 variable statistics.

**Price: $17.99**

This vintage HP business calculator features a 2 line dot-matrix display and has an IR printer port. It has many business functions including present and future values, cash flows, depreciation, bonds, amortizations, and internal rate of return. In addition, the calculator has a real-time clock..

**Price: $22.99**

This vintage HP business calculator features a 2 line dot-matrix display and has an IR printer port. It has many business functions including present and future values, cash flows, depreciation, bonds, amortizations, and internal rate of return. In addition, the calculator has a real-time clock..

**Price: $22.99**

This classic HP business calculator features a 10 digit display. It has many business functions including present and future values, cash flows, depreciation, amortizations, and internal rate of return. In addition, the calculator can do date calculations, 2-variable statistics, and is programm..

**Price: $29.99**

This classic HP business calculator features a 10 digit display. It has many business functions including present and future values, cash flows, depreciation, amortizations, and internal rate of return. In addition, the calculator can do date calculations, 2-variable statistics, and is programm..

**Price: $29.99**

This vintage HP business calculator features a four line dot matrix display, full alphabetic keyboard and IR printer port. It has many business functions including present and future values, cash flows, depreciation, amortizations, and internal rate of return. In addition, the calculator has a ..

**Price: $49.99**

This vintage HP business calculator features a four line dot matrix display, full alphabetic keyboard and IR printer port. It has many business functions including present and future values, cash flows, depreciation, amortizations, and internal rate of return. In addition, the calculator has a ..

**Price: $49.99**

This is the top of the line TI graphing calculator. One and two variable statistics, matrix operations, internal clock, equation solver, simultaneous linear equations, programming, and much more. This calculator also features a USB port, 1.5 MB of flash memory, and a removable keyboard faceplat..

**Price: $56.99**

This is the top of the line TI graphing calculator. One and two variable statistics, matrix operations, internal clock, equation solver, simultaneous linear equations, programming, and much more. This calculator also features a USB port, 1.5 MB of flash memory, and a removable keyboard faceplat..

**Price: $56.99**

TI's second entry into the graphing calculator market. This calculator has a much smaller form factor and display than the TI-83. There are some light surface scratches on the display (see photos) but they do not affect functionality. A previous owner's name is also inscribed on the back (see p..

**Price: $15.99**

TI's second entry into the graphing calculator market. This calculator has a much smaller form factor and display than the TI-83. There are some light surface scratches on the display (see photos) but they do not affect functionality. A previous owner's name is also inscribed on the back (see p..

**Price: $15.99**

One of TI's first graphing calculators. A bit more limited than the TI-83 but still good. This calculator has a backup battery which was not included in some early models. A previous owner's name is inscribed on the back (see photos) but this does not affect functionality.

**Price: $12.99**

One of TI's first graphing calculators. A bit more limited than the TI-83 but still good. This calculator has a backup battery which was not included in some early models. A previous owner's name is inscribed on the back (see photos) but this does not affect functionality.

**Price: $12.99**