| Aristo |
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in Sep-2004 |
| "Aristo Studio No. 01068 Multilog Slide Rule 2 | $153.00 | 16-Sep-2004 | 18 |
| Aristo-Aviat Circular Aviator Slide Rule w/Lea | $62.98 | 12-Sep-2004 | 10 |
| Aristo 0969 StudioLog Slide Rule | $61.00 | 05-Sep-2004 | 5 |
| very rare german slide rule ARISTO 0971 | $55.00 | 12-Sep-2004 | 12 |
| Very rare german circular slide rule ARISTO 06 | $33.10 | 12-Sep-2004 | 6 |
| Aristo Hyperbolog Slide Rule | $27.00 | 23-Sep-2004 | 2 |
| german slide rule ARISTO 0901 MINT | $21.71 | 12-Sep-2004 | 3 |
| "Aristo no. 109 German Slide Rule Dennert & Pa | $18.06 | 29-Sep-2004 | 5 |
| german slide rule ARISTO 0908 MINT | $16.75 | 12-Sep-2004 | 3 |
| Slide rule ARISTO 0905 Schul-Commerz | $16.50 | 04-Sep-2004 | 5 |
| 1955 Aristo Slide Rule Made in Germany w/ Ins | $12.50 | 23-Sep-2004 | 4 |
| "Aristo Scholar 0903 Slide Rule, Case, Manual | $10.50 | 02-Sep-2004 | 3 |
| Aristo Bischolar 0906 Slide Rule Mint In Box | $9.99 | 17-Sep-2004 | 1 |
| "ARISTO MULTILOG 870 Pocket Slide Rule w/Case, | $9.00 | 05-Sep-2004 | 1 |
| ARISTO No.803 Model Pocket Slide Rule w/CaseGe | $7.00 | 05-Sep-2004 | 1 |
| Aristo 0903 Scholar Slide Rule & Instructions | $3.00 | 24-Sep-2004 | 1 |
| Slide rule ARISTO 0906 Bischolar LL | $1.00 | 04-Sep-2004 | 2 |
| Vintage German Aristo 909 MultiTrig Slide Rule | $9.98 | 07-Sep-2004 | 0 |
| Vintage German Aristo 909 MultiTrig Slide Rule | $9.98 | 07-Sep-2004 | 0 |
| ARISTO RIETZ 89 Pocket Slide Rule w/case & Man | $6.00 | 05-Sep-2004 | 0 |