| Lawrence |
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in Jun-2007 |
| Vintage Lawrence Model 10B Slide Rule & Box | $14.99 | 07-Jun-2007 | 1 |
| 1952 VINTAGE LAWRENCE SLIDE RULE BOX INSTRUCTI | $9.99 | 16-Jun-2007 | 1 |
| Harshaw Lawrence Drier* Vintage Slide Rule Rul | $9.99 | 09-Jun-2007 | 1 |
| Vintage Lawrence Printers Proportion Wood Slid | $6.50 | 07-Jun-2007 | 2 |
| Vintage Lawrence Engineering Slide Rule With C | $5.00 | 10-Jun-2007 | 1 |
| VINTAGE LAWRENCE WOOD SLIDE RULE #10-B WITH BO | $4.99 | 17-Jun-2007 | 1 |
| Vintage Lawrence Slide Rule Instruction Book - | $4.99 | 27-Jun-2007 | 1 |
| Vintage Lawrence Deluxe Slide Rule. | $4.76 | 11-Jun-2007 | 3 |
| LAWRENCE SLIDE RULE WITH INSTRUCTION BOOK (193 | $2.89 | 17-Jun-2007 | 1 |
| "VINTAGE, OLD, ""LAWRENCE SLIDE RULE INSTRUCTI | $2.50 | 13-Jun-2007 | 1 |
| Lawrence Engineering No. 10-B Slide Rule | $0.99 | 06-Jun-2007 | 1 |
| LAWRENCE DELUXE SLIDE RULE | $14.97 | 16-Jun-2007 | 0 |
| "Lawrence 10"" Slide rule 10 B w/ box" | $9.99 | 20-Jun-2007 | 0 |
| VINTAGE LAWRENCE ENGINEERING WOODEN SLIDE RULE | $9.99 | 11-Jun-2007 | 0 |
| 1900's LAWRENCE ENGINEERING Deluxe SLIDE RULE | $9.99 | 04-Jun-2007 | 0 |
| "Vintage Lawrence Engineering Wabash, Ind., Sl | $9.50 | 17-Jun-2007 | 0 |
| Lawrence Engineering Wooden Slide Rule Wabash | $7.99 | 14-Jun-2007 | 0 |
| Lawrence Engineering Wooden Slide Rule Wabash | $7.99 | 17-Jun-2007 | 0 |
| LAWRENCE SLIDE RULE IN BOOK ATTACHED COPYRIGHT | $7.77 | 24-Jun-2007 | 0 |
| "8 INCH WOOD SLIDE RULE, LAWRENCE ENG. SVC., W | $6.99 | 25-Jun-2007 | 0 |
| 1939 Lawrence Slide Rule Instruction Book | $5.99 | 11-Jun-2007 | 0 |
| "12"" Lawrence Eng. Wooden SLIDE RULE with Cas | $5.00 | 26-Jun-2007 | 0 |
| Vintage Slide Rule Lawrence Engineering Wabash | $5.00 | 11-Jun-2007 | 0 |
| Lawrence Deluxe Slide Rule | $0.99 | 12-Jun-2007 | 0 |
| Lawrence Engineering No. 10-B Slide Rule | $0.99 | 13-Jun-2007 | 0 |