| Lawrence |
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in Dec-2007 |
| OLD VINTAGE WOOD LAWRENCE ENGINEERING SLIDE RU | $17.78 | 12-Dec-2007 | 1 |
| Vintage Wabash Superflash Slide Rule Lawrence | $12.09 | 13-Dec-2007 | 4 |
| LAWRENCE ENGINEERING WOOD SLIDE RULE | $9.99 | 03-Dec-2007 | 1 |
| "Vintage 1939, Lawrence Slide Rule, Case & Ins | $8.50 | 27-Dec-2007 | 2 |
| lot 3 vintage SLIDE RULE RULER Lawrence Richar | $6.00 | 06-Dec-2007 | 3 |
| VINTAGE LAWRENCE ENGINEERING SLIDE RULE & CASE | $5.99 | 09-Dec-2007 | 1 |
| Old Lawrence Wooden Slide Rule with Box | $5.50 | 02-Dec-2007 | 5 |
| The Slide Rule and How to Use It-Lawrence Engi | $5.50 | 13-Dec-2007 | 3 |
| Lawrence DeLuxe Slide Rule Lawrence Engineerin | $5.00 | 19-Dec-2007 | 1 |
| Vintage Lawrence Engineering Service Slide Rul | $4.99 | 09-Dec-2007 | 2 |
| "Vintage Wooden Slide Rule,Lawrence Engineerin | $3.95 | 23-Dec-2007 | 2 |
| LAWRENCE DELUXE SLIDE RULE IN BOX NO RESERVE | $1.99 | 02-Dec-2007 | 1 |
| 1950 LAWRENCE SLIDE RULE w LEATHER case & Inst | $9.99 | 18-Dec-2007 | 0 |
| 1960 Lawrence Slide Rule with Instruction Manu | $9.99 | 02-Dec-2007 | 0 |
| LAWRENCE ENGINEERING PERU IN WOOD SLIDE RULE R | $8.99 | 11-Dec-2007 | 0 |
| "Vintage 1939, Lawrence Slide Rule, Case & Ins | $7.95 | 06-Dec-2007 | 0 |
| Antique 1940's Lawrence 10-B SLIDE RULE w/Orig | $7.95 | 05-Dec-2007 | 0 |
| vintage lawrence slide rule w/ envelope paper | $7.00 | 11-Dec-2007 | 0 |
| Vintage Wooden Lawrence Engineering Slide Rule | $5.99 | 07-Dec-2007 | 0 |
| Vtg. Lawrence Engineering Slide Rule - Peru IN | $4.99 | 15-Dec-2007 | 0 |
| Lawrence Engineering Service Slide Rule | $0.99 | 08-Dec-2007 | 0 |