| Aristo |
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in Apr-2004 |
| "ARISTO Merchant Slide Rule #845, Deluxe Case& | $28.00 | 08-Apr-2004 | 8 |
| ARISTO ELECTRONIC Slide Rule No. 10175 in Orig | $26.77 | 24-Apr-2004 | 8 |
| "Aristo Slide Rule No. 845, case, box, manual | $26.00 | 22-Apr-2004 | 8 |
| ARISTO PUCK 4 INCH SLIDE RULE NO. 810 CASE/DIR | $20.70 | 26-Apr-2004 | 8 |
| Aristo Charvos No. 0970 Multilog Slide Rule W/ | $15.50 | 12-Apr-2004 | 3 |
| "Aristo MultiLog No. 970 Slide Rule, Germany" | $15.50 | 01-Apr-2004 | 3 |
| ARISTO STUDIO SLIDE RULE No 0968 | $10.00 | 18-Apr-2004 | 1 |
| 1962 Slide Rule Book & Aristo 0903LL Slide Rul | $7.50 | 08-Apr-2004 | 1 |
| Aristo-Scholar Slide Rule with case NR! | $6.95 | 04-Apr-2004 | 1 |
| SLIDE RULE by ARISTO | $5.50 | 26-Apr-2004 | 3 |
| Aristo Scholar Slide Rule 0903 | $4.02 | 18-Apr-2004 | 2 |
| Old Charvoz Aristo Scholar Slide Ruler & Case | $3.99 | 04-Apr-2004 | 1 |
| ARISTO SLIDE RULE / VERSALOG / With Leather Ca | $24.99 | 19-Apr-2004 | 0 |
| ARISTO SLIDE RULE NO. 89 | $9.99 | 03-Apr-2004 | 0 |
| "ARISTO STUDIO Mod. 0968 Slide Rule,Germany,13 | $8.00 | 25-Apr-2004 | 0 |
| "NEAT 6"" ARISTO-RIETZ #89 GERMAN SLIDE RULE W | $4.50 | 12-Apr-2004 | 0 |