| Concise |
| Description | Price | Date | Bids |
Prices of slide rules sold on ebay (the internet auction) in Sep-2007 |
| CONCISE CIRCULAR SLIDE RULE W/ CASE & MANUALS | $113.61 | 17-Sep-2007 | 7 |
| NOS CONCISE CIRCULAR SLIDE RULE W/ CASE & MANU | $31.00 | 17-Sep-2007 | 3 |
| CONCISE Circular Slide Rule w/ Case and Instru | $31.00 | 03-Sep-2007 | 3 |
| CONCISE CIRCULAR SLIDE RULE W/MANUAL # 260 | $22.01 | 23-Sep-2007 | 9 |
| NOS CONCISE CIRCULAR SLIDE RULE W/ CASE & MANU | $19.99 | 16-Sep-2007 | 1 |
| CONCISE CIRCULAR SLIDE RULE W/ CASE & MANUAL # | $18.10 | 17-Sep-2007 | 4 |
| "Vintage Concise #217 Circular Slide Rule,Case | $18.00 | 10-Sep-2007 | 6 |
| CONCISE CIRCULAR SLIDE RULE W/MANUALS # CTCS-5 | $16.50 | 23-Sep-2007 | 3 |
| Concise Circular Slide Rule w/Case Pocket Size | $15.50 | 03-Sep-2007 | 6 |
| 1968 VINTAGE SAMA & ETANI CONCISE CIRCULAR SLI | $12.67 | 07-Sep-2007 | 6 |
| CONCISE CIRCULAR SLIDE RULE W/ CASE & MANUAL # | $12.50 | 17-Sep-2007 | 2 |
| VINTAGE CONCISE CIRCULAR SLIDE RULE WITH BOOKL | $12.49 | 04-Sep-2007 | 2 |
| Concise Circular Slide Rule | $11.50 | 13-Sep-2007 | 2 |
| Concise Circular Slide Rule EE-112 Sachs Elect | $10.45 | 16-Sep-2007 | 2 |
| """Concise"" No. 260 Circular Slide Rule w/ Ca | $9.50 | 16-Sep-2007 | 10 |
| VINTAGE MOTOROLA CIRCULAR CONCISE SLIDE RULER | $7.99 | 16-Sep-2007 | 1 |
| Vintage Pan Am Circular Concise Slide Rule VG | $7.50 | 17-Sep-2007 | 2 |
| Concise Circular Slide Rule | $7.50 | 02-Sep-2007 | 2 |
| 2 Concise Circular Slide Rules Model 90 & S&E | $7.45 | 22-Sep-2007 | 2 |
| Concise Circular Slide Rule Micro Switch Honey | $3.25 | 10-Sep-2007 | 4 |