| AcuMath |
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in Jul-2004 |
| "acumath 400 student slide rule, box, case, ma | $5.50 | 01-Jul-2004 | 4 |
| Acumath No. 500 Engraved Slide Rule w\ Case & | $3.00 | 31-Jul-2004 | 2 |
| SLIDE RULE BY ACUMATE WITH CASE-LIKE NEW | $3.00 | 11-Jul-2004 | 3 |
| "ACUMATH SLIDE RULE, MODEL #400, Plastic, w/Ca | $0.99 | 12-Jul-2004 | 1 |
| Old Acumath plastic slide rule w box and bookl | $9.99 | 20-Jul-2004 | 0 |
| "ACUMATH #500 Slide Rule, MINTY" | $9.99 | 18-Jul-2004 | 0 |
| "60s, 70s AcuMath SLIDE RULE, Case, Booklet, N | $6.99 | 05-Jul-2004 | 0 |
| ACUMATH NO. 400 SLIDE RULE AND CASE - USA | $5.00 | 31-Jul-2004 | 0 |
| ACUMATH SLIDE RULE/RULER WITH CASE VINTAGE? | $3.99 | 18-Jul-2004 | 0 |