| Aristo |
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in Oct-2004 |
| MIB Aristo 0915 Elektro Slide Rule | $72.00 | 11-Oct-2004 | 6 |
| Aristo StudioLog 0969 Slide Rule | $71.00 | 17-Oct-2004 | 9 |
| "ARISTO STUDIO 868 GERMAN SLIDE RULE , BOX AND | $51.00 | 08-Oct-2004 | 10 |
| Aristo 0968 Studio Duplex Slide Rule | $51.00 | 17-Oct-2004 | 5 |
| CIRCULAR SLIDE RULE ARISTO 622 | $38.00 | 31-Oct-2004 | 7 |
| VINTAGE ARISTO STUDIO SLIDE RULE NO 0970 WITH | $27.90 | 26-Oct-2004 | 5 |
| Aristo Studio 0968 German slide rule complete | $26.29 | 20-Oct-2004 | 4 |
| VINTAGE ARISTO STUDIO SLIDE RULE NO 968 WITH B | $17.40 | 26-Oct-2004 | 3 |
| ARISTO STUDIO 0968 SLIDE RULE- -PRISTINE | $16.50 | 31-Oct-2004 | 3 |
| Aristo 0968 Studio Duplex Slide Rule | $15.50 | 10-Oct-2004 | 6 |
| VINTAGE CHARVOZ ARISTO SCHOLAR NO. 0903 SLIDE | $11.40 | 20-Oct-2004 | 5 |
| Slide Rule ARISTO Nr 0970 Germany with Case Mu | $5.69 | 21-Oct-2004 | 3 |
| # Aristo Nr.0901 Junior slide rule # | $24.99 | 18-Oct-2004 | 0 |
| "6"" SLIDE RULE by ARISTO-STUDIO Nr 868, GERMA | $19.99 | 20-Oct-2004 | 0 |
| German Slide Rule Aristo -Rietz Dennert Pape i | $9.99 | 26-Oct-2004 | 0 |
| Slide Rule Aristo -Rietz Dennert Pape in Leath | $9.99 | 12-Oct-2004 | 0 |
| VINTAGE ARISTO MAVERICK SLIDE RULE w/ CASE & I | $5.99 | 10-Oct-2004 | 0 |