| Lawrence |
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in Oct-2007 |
| Lawrence Engineering Wooden Slide Rule Wabash | $9.99 | 18-Oct-2007 | 1 |
| 1946 Lawrence FLASHRULE Sliderule Photo Flash | $9.99 | 06-Oct-2007 | 1 |
| MIB Lawrence Deluxe Slide Rule 1939 w/Instruct | $9.99 | 22-Oct-2007 | 1 |
| "2 Vintage Slide Rules Lawrence Engineering Pe | $8.19 | 10-Oct-2007 | 2 |
| Vintage Wooden Lawrence Engineering Slide Rule | $7.99 | 27-Oct-2007 | 1 |
| VINTAGE LAWRENCE ENGINEERING SLIDE RULE | $6.99 | 21-Oct-2007 | 1 |
| Lawrence Engineering Service Model 10-B Wood S | $4.00 | 13-Oct-2007 | 1 |
| 1940 Lawrence Slide Rule Instruction Book | $3.95 | 22-Oct-2007 | 1 |
| Vintage Lawrence Engineering Service Slide Rul | $1.29 | 27-Oct-2007 | 2 |
| Vintage 1946 Lawrence 6-0p Flashrule Slide Rul | $9.99 | 22-Oct-2007 | 0 |
| VINTAGE LAWRENCE ENGINEERING SLIDE RULE AND CA | $9.99 | 18-Oct-2007 | 0 |
| VINTAGE LAWRENCE LOG SLIDE RULE MADE IN USA | $9.95 | 08-Oct-2007 | 0 |
| "Vintage Lawrence Eng, Slide Rule" | $9.95 | 30-Oct-2007 | 0 |
| "Lawrence Engineering Slide Rule In Box, 1940s | $7.99 | 29-Oct-2007 | 0 |
| "Vintage Lawrence Engineering Wooden Slide Rul | $5.00 | 21-Oct-2007 | 0 |
| WOODEN SLIDE RULE LAWRENCE ENGINEERING SERVICE | $5.00 | 25-Oct-2007 | 0 |
| Vintage Lawrence wood slide rule in case Peru | $4.95 | 25-Oct-2007 | 0 |
| WOOD SLIDE RULE LAWRENCE ENGINEERING SERVICE M | $3.99 | 31-Oct-2007 | 0 |
| V intage Lawrence Slide Rule in Box | $3.99 | 25-Oct-2007 | 0 |
| 1940 Lawrence Slide Rule Instruction Book | $3.95 | 30-Oct-2007 | 0 |
| Wooden Slide Rule Lawrence Engineering Wabash | $2.99 | 23-Oct-2007 | 0 |
| Vintage Lawrence Slide rule in slip case | $2.99 | 14-Oct-2007 | 0 |
| Vintage Lawrence Slide rule in slip case | $2.99 | 07-Oct-2007 | 0 |
| Vintage Wood Lawrence Engineering Slide Rule W | $0.99 | 28-Oct-2007 | 0 |
| "SLIDE RULE 10' BY LAWRENCE ENGINEERING SERVIC | $0.99 | 26-Oct-2007 | 0 |