| Aristo |
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in Sep-2007 |
| ARISTO 869 StudioLog Duplex Slide Rule never u | $249.00 | 01-Sep-2007 | 1 |
| Aristo 0969 Studiolog Slide Rule Sliderule ver | $147.50 | 01-Sep-2007 | 1 |
| ARISTO 0969 STUDIOLOG SLIDE RULE - GERMANY - R | $102.50 | 09-Sep-2007 | 5 |
| ARISTO 869 StudioLog Duplex Slide Rule never u | $99.00 | 08-Sep-2007 | 1 |
| VINTAGE ARISTO NR. 0970 MULTILOG SLIDE RULE IN | $71.00 | 06-Sep-2007 | 4 |
| Aristo 99 slide rule w magnifier regolo Aristo | $70.00 | 18-Sep-2007 | 9 |
| Very rare Aristo 969 slide rule Raro regolo Ar | $66.75 | 18-Sep-2007 | 6 |
| Aristo Multi-Log Slide Rule #0970 | $51.56 | 15-Sep-2007 | 7 |
| SLIDE RULE ==x 4==ARISTO==TAGE-OLSEN==EVER-THE | $48.00 | 23-Sep-2007 | 4 |
| ARISTO Scholar 902 Slide Rule | $26.50 | 15-Sep-2007 | 4 |
| # Aristo Nr. 867 U slide rule in pouche # | $22.48 | 18-Sep-2007 | 2 |
| ARISTO NR. 870 MULTILOG SLIDE RULE WITH POUCH | $16.48 | 19-Sep-2007 | 3 |
| Very rare Aristo0906 slide rule MINT regolo Ar | $15.50 | 18-Sep-2007 | 3 |
| Aristo 622 circular slide rule-calculator | $14.50 | 11-Sep-2007 | 5 |
| Vintage Slide Rule Aristo Dennert & Pape Germa | $9.99 | 16-Sep-2007 | 1 |
| Old scarce SKF-Aristo89 slide rule regolo SKF- | $7.50 | 18-Sep-2007 | 7 |
| ARISTO RIETZ SLIDE RULE GERMANY W LEATHER CASE | $7.00 | 09-Sep-2007 | 2 |
| Very rare Aristo0968 slide rule regolo Aristo0 | $6.90 | 18-Sep-2007 | 3 |
| Very rare Aristo0901 slide rule regolo Aristo0 | $6.50 | 18-Sep-2007 | 6 |
| "VINTAGE ENGINEERING 5"" SLIDE RULE ARISTO No | $24.99 | 12-Sep-2007 | 0 |
| POCKET SLIDE RULE ARISTO MULTI RIETZ W GERMANY | $19.00 | 09-Sep-2007 | 0 |
| SLIDE RULE GERMANY W LEATHER CASE ARISTO RIETZ | $9.98 | 01-Sep-2007 | 0 |