| AcuMath |
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in Apr-2007 |
| ACUMATH No. 400 SlideRule used still nice | $8.01 | 08-Apr-2007 | 3 |
| VINTAGE ACUMATH MANNHEIM TYPE SLIDE RULE - MAN | $7.99 | 21-Apr-2007 | 1 |
| Vintage ACUMATH #400 Slide Rule with original | $6.00 | 28-Apr-2007 | 1 |
| Vintage Acumath Slide Rule | $5.95 | 05-Apr-2007 | 1 |
| Vintage Acumath Slide Rule #400 w/ Case Engine | $5.19 | 08-Apr-2007 | 1 |
| 1950's Vintage AcuMath Slide Rule in Original | $0.98 | 02-Apr-2007 | 1 |
| ACUMATH SLIDE RULE NUMBER 400 GREAT CONDITION | $9.99 | 16-Apr-2007 | 0 |
| VINTAGE ACUMATH MANNHEIM TYPE SLIDE RULE - MAN | $9.99 | 10-Apr-2007 | 0 |
| Vintage Acumath Slide Rule #400 Made in U.S.A. | $6.95 | 10-Apr-2007 | 0 |
| ACUMATH ~ SLIDE RULE ~ NICE! ~ NEW? ~ #1240 | $5.99 | 14-Apr-2007 | 0 |
| 2 Vintage Acumath Mannaheim Slide Rule | $4.99 | 29-Apr-2007 | 0 |