| AcuMath |
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in Jul-2007 |
| Vintage Acumath #1311 Slide Rule Log Trig. 195 | $16.50 | 11-Jul-2007 | 6 |
| "Acumath 900 T Engraved 10"" Slide Rule Boxed | $13.00 | 04-Jul-2007 | 2 |
| "Acumath Trig & Log Log Slide Rule Manual, Pic | $11.05 | 04-Jul-2007 | 2 |
| ACUMATH SLIDE RULES NUMBER 400 | $5.50 | 18-Jul-2007 | 2 |
| ACUMATH SLIDE RULE NUMBER 400 GREAT CONDITION | $9.99 | 16-Jul-2007 | 0 |
| ACUMATH SLIDE RULE NUMBER 400 GREAT CONDITION | $9.99 | 05-Jul-2007 | 0 |
| Acumath Slide Rule NO. 400 Mint With Protector | $9.99 | 24-Jul-2007 | 0 |
| STERLING PLASTICS CO ACUMATH SLIDE RULE W/INST | $8.00 | 19-Jul-2007 | 0 |
| ACUMATH 400 B SLIDE RULE | $2.99 | 27-Jul-2007 | 0 |