| Aristo |
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in May-2004 |
| "Aristo IBM Manpower Calculator Slide Rule * 1 | $202.50 | 18-May-2004 | 9 |
| Aristo StudioLog 0969 Slide Rule | $96.13 | 23-May-2004 | 14 |
| "Aristo 870 Pocket Slide Rule, Complete in Box | $52.50 | 28-May-2004 | 11 |
| # Aristo Nr. 868 slide rule mint cond # | $43.00 | 06-May-2004 | 7 |
| ARISTO NO.0929 MULTITRIG SLIDE RULE IN CASE L@ | $30.00 | 01-May-2004 | 8 |
| ARISTO STUDIO 868 Pocket Slide Rule w/Case & M | $29.00 | 16-May-2004 | 10 |
| NIB Aristo 89 Rietz pocket slide rule sliderul | $24.95 | 30-May-2004 | 1 |
| Aristo Slide Rule Capitol Radio Eng. Institute | $22.18 | 16-May-2004 | 4 |
| Charvoz Aristo-Multilog 970 Slide Rule w/Leath | $21.60 | 30-May-2004 | 4 |
| Mint ARISTO Multilog SLIDE RULE & LEATHER Case | $19.00 | 30-May-2004 | 6 |
| ARISTO SLIDE RULE | $15.77 | 25-May-2004 | 3 |
| ** Aristo nr. 970 Slide Rule ** NO RESERVE ** | $13.60 | 29-May-2004 | 8 |
| ARISTO SLIDE RULE / With Leather Case | $12.60 | 25-May-2004 | 4 |
| RARE VINTAGE ARISTO 0903 LL SCHOLAR SLIDE RULE | $9.99 | 22-May-2004 | 1 |
| Nice Aristo -MultiLog Nr. 0970 Slide Rule | $9.99 | 07-May-2004 | 1 |
| "ARISTO 966H Slide Rule,13 1/4"" Large,Dennert | $9.00 | 30-May-2004 | 1 |
| "Lot of Acumath Mannheim Slide Rule, Aristo, T | $7.50 | 24-May-2004 | 4 |
| Aristo Slide Rule w/ hand tooled leather sheat | $7.00 | 24-May-2004 | 2 |
| "Aristo Nr. 0929 Slide Rule Leather Case, Orig | $19.99 | 10-May-2004 | 0 |
| NIB Aristo 89 Rietz pocket slide rule sliderul | $19.95 | 17-May-2004 | 0 |
| RARE ARISTO 89 VINTAGE GERMAN POCKET SLIDE RUL | $9.99 | 22-May-2004 | 0 |
| RARE VINTAGE ARISTO N:99 GERMAN SLIDE RULE | $9.99 | 22-May-2004 | 0 |
| ARISTO #0970 MULTI-LOG SLIDE RULE | $9.99 | 26-May-2004 | 0 |
| Aristo Rietz Slide Rule w/box Made in Germany | $9.99 | 31-May-2004 | 0 |
| Aristo 903 LL Scholar slide rule sliderule | $9.95 | 09-May-2004 | 0 |
| Aristo 903 LL Scholar slide rule sliderule | $6.95 | 16-May-2004 | 0 |
| Slide Rule Aristo Nr. 99 in Staedler-Mars Card | $6.80 | 19-May-2004 | 0 |
| Aristo Slide Rule No. 0970 Charvoz Germany | $5.00 | 15-May-2004 | 0 |