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TI-55 III Scientific Calculator
$50.00 sold ❌ Overpriced
Sold 2026-03-19
Rosamond, California, US
From listing #147088: Texas Instruments TI-55 III Scientific Calculator New Open Box
View Listing
Texas Instruments TI-55 III scientific calculator, new open box, vintage late‑1990s model.
Item Details
Brand:
Texas Instruments
Item Type:
Computer
Calculator
Computer Model:
TI-55 III
(1986-1979)
Platform:
TI Calculator
Cosmetic condition:
Good - Moderate wear, normal for age
Functional condition:
Untested - Not tested, unknown condition
Comes With
Texas Instruments TI-55 III - Computer Market Overview
Based on
23 sold
computers,
one should expect to pay ~$16 for a working unit.
However, this unit's condition (Good / Untested) brings its guide price to $15.
9 others are also listed for sale.
This item ($58)
is 3.9x the guide price (~$15).
Price Position — Good / Untested (5 sales)
$1
Median $15
$58
This item: $58
Price by Condition
| Refurbished | Fully Working | Partially Working | Powers On | Untested | Not Working | For Parts | |
|---|---|---|---|---|---|---|---|
| New | — | $24 (1) ~$64 | — | — | $35 (1) ~$51 | — | — |
| Mint | — | ~$52 | ~$39 | ~$37 | ~$42 | — | — |
| Excellent | ~$26 | ~$24 | ~$18 | ~$17 | ~$19 | ~$8 | ~$6 |
| Good | ~$16 | $15 (15) ~$15 | ~$11 | ~$10 | THIS ITEM $15 (5) ~$12 | ~$5 | ~$4 |
| Fair | — | $16 (1) ~$11 | ~$8 | ~$8 | ~$9 | ~$4 | ~$3 |
| Poor | — | ~$8 | ~$6 | ~$6 | ~$7 | ~$3 | ~$2 |
$X (N) — Median sold price (N sales)
~$X — Guide price
This item
$X (N) — TI Calculator (platform)
Guide prices based on 23 sales, Good/Fully Working baseline ~$15.
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Compare to TI Calculator platform aggregate:
Recently Sold TI-55 III Computers
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