| Lawrence |
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in Apr-2008 |
| VINTAGE LAWRENCE 10B ENGINEERING SLIDE RULE WI | $9.99 | 11-Apr-2008 | 1 |
| "Peru, In, Lawrence Slide Rule & Instruction B | $9.99 | 26-Apr-2008 | 1 |
| Vintage Lawrence Deluxe Slide Rule 10-b | $9.95 | 20-Apr-2008 | 1 |
| 2 Vintage Lawrence Deluxe Slide Rules with Box | $8.49 | 07-Apr-2008 | 2 |
| Lawrence Deluxe Wooden Slide Rule in Box from | $8.00 | 09-Apr-2008 | 2 |
| VINTAGE LAWRENCE ENGINEERING SER. SLIDE RULE W | $5.99 | 12-Apr-2008 | 1 |
| WOOD SLIDE RULE Advertising LAWRENCE ENGINEERI | $5.95 | 13-Apr-2008 | 1 |
| Vintage Wooden Slide Rule Lawrence DeLuxe+Orig | $4.25 | 01-Apr-2008 | 3 |
| VINTAGE LAWRENCE SLIDE RULE W/ MANUAL & CASE 1 | $3.75 | 24-Apr-2008 | 3 |
| Vintage Wooden Lawrence Engineer Slide Rule w/ | $3.00 | 07-Apr-2008 | 2 |
| 2 LAWRENCE SLIDE RULES WITH BOXES model 10-B b | $2.25 | 12-Apr-2008 | 2 |
| Lawrence Engineering Service Old Wood Slide Ru | $0.99 | 09-Apr-2008 | 1 |
| 2 VINTAGE LAWRENCE SLIDE RULES | $0.99 | 01-Apr-2008 | 1 |
| 1939 LAWRENCE ENGINEERING SERVICE WOOD SLIDE R | $0.99 | 02-Apr-2008 | 1 |
| Vintage ECLIPSE Drafting Set and Lawrence Slid | $19.99 | 14-Apr-2008 | 0 |
| LAWRENCE DELUXE SLIDE RULE | $14.97 | 12-Apr-2008 | 0 |
| Vintage Lawrence Slide Rule plus instruction b | $9.99 | 06-Apr-2008 | 0 |
| VINTAGE 1939 LAWRENCE SLIDE RULE INSTRUCTION B | $9.95 | 21-Apr-2008 | 0 |
| VINTAGE 1939 LAWRENCE SLIDE RULE INSTRUCTION B | $9.95 | 28-Apr-2008 | 0 |
| VINTAGE RULERS LAWRENCE SLIDE LUFKIN METAL 2 I | $7.99 | 27-Apr-2008 | 0 |
| Vintage 1939 Lawrence Slide Rule Instruction M | $6.50 | 07-Apr-2008 | 0 |
| VINTAGE LAWRENCE ENGINEERING SER. SLIDE RULE W | $5.99 | 03-Apr-2008 | 0 |
| Early Lawrence Engineering 8-B slide rule circ | $5.95 | 14-Apr-2008 | 0 |
| "Lawrence Slide Rule Engineer Ruler Made Peru, | $5.25 | 17-Apr-2008 | 0 |
| "Lawrence Slide Rule Engineer Ruler Made Peru, | $5.25 | 13-Apr-2008 | 0 |
| "Lawrence Slide Rule Engineer Ruler Made Peru, | $5.25 | 19-Apr-2008 | 0 |
| "1940 INSTR. BK. LAWRENCE SLIDE RULE V GOOD PE | $5.00 | 09-Apr-2008 | 0 |
| Vintage Lawrence Slide Rule plus instruction b | $5.00 | 11-Apr-2008 | 0 |
| VINTAGE LAWRENCE 10 INCH SLIDE RULE IN BOX | $2.99 | 23-Apr-2008 | 0 |
| Vintage Lawrence Slide Rule #10-B / Engineerin | $0.99 | 21-Apr-2008 | 0 |
| Ask For The Lawrence Slide Rule Owners Book Ma | $0.99 | 13-Apr-2008 | 0 |
| #2343-Slide Rule Book Lawrence 1939 | $0.99 | 07-Apr-2008 | 0 |
| "Two Slide Rulers, Compass & Lawrence Eng. Ser | $0.99 | 07-Apr-2008 | 0 |