| AcuMath |
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in Aug-2007 |
| "ACUMATH, Engraved Slide Rule, Mannheim Type, | $13.95 | 04-Aug-2007 | 1 |
| Vintage Acumath Student Mannheim Slide Rule | $7.95 | 14-Aug-2007 | 1 |
| SLIDE RULER with Case No 400 Acumath | $7.95 | 16-Aug-2007 | 1 |
| Acumath Model 400 Mannheim Slide Rule In Box N | $5.99 | 08-Aug-2007 | 2 |
| Acumath No. 600 Slide Rule & Case | $4.50 | 21-Aug-2007 | 1 |
| Acumath Slide Rule - No. 400B | $3.99 | 17-Aug-2007 | 1 |
| ACUMATH SLIDE RULE NUMBER 400 GREAT CONDITION | $9.99 | 27-Aug-2007 | 0 |
| VINTAGE ACUMATH NO. 400 B SLIDE RULE - USA | $6.50 | 21-Aug-2007 | 0 |
| ACUMATH SLIDE RULE NO. 400 | $4.99 | 10-Aug-2007 | 0 |
| "ACUMATA, 12"" SLIDE RULE" | $4.99 | 22-Aug-2007 | 0 |
| ACUMATH SLIDE RULE NO. 400 | $4.99 | 03-Aug-2007 | 0 |
| Acumath No. 600 Slide Rule & Case | $4.50 | 13-Aug-2007 | 0 |
| VINTAGE Acumath STUDENT MANNHEIM SLIDE RULE + | $0.99 | 19-Aug-2007 | 0 |