| AcuMath |
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in Nov-2004 |
| ACCUMATH no. 800 vintage slide rule | $9.99 | 15-Nov-2004 | 1 |
| "ACUMATH #400B ENGRAVED SLIDE RULE, CASE, BOOK | $7.50 | 26-Nov-2004 | 1 |
| "Acu-Math Acumath 12"" Slide Rule No. 400 Like | $5.00 | 21-Nov-2004 | 1 |
| ACUMATH 400 SLIDE RULE MANNHEIM TYPE NICE COND | $4.99 | 18-Nov-2004 | 1 |
| ACUMATH MANNHEIM SLIDE RULE RULER CASE MATH EN | $3.50 | 13-Nov-2004 | 3 |
| Vintage Acumath Slide Rule 9 Scales 1972 MOC T | $2.99 | 02-Nov-2004 | 1 |
| AcuMath Slide Rule with Military Case & Logari | $9.70 | 27-Nov-2004 | 0 |
| "LOG LOG DUPLEX TRIG SLIDE RULE, ACUMATH NO. 1 | $7.00 | 18-Nov-2004 | 0 |
| "ACUMATH #400 ""SLIDE RULE"" VINTAGE HAND CACU | $5.00 | 14-Nov-2004 | 0 |
| ACUMATH #400 SLIDE RULE w/ orginal case & inst | $3.00 | 14-Nov-2004 | 0 |