| Slide Rules HOME page | PRICES | < SITE MAP > |
Detailed analysis from 01-Apr-2008 to 30-Apr-2008 | ||
| Number of bidded items | 1744 | |
| Number of unbidded items | 736 | |
| Total sales | $ 77022 | |
Most expensive items | ||
| ANTIQUE 1881 KEUFFEL & ESSER THACHER SLIDE RUL | $1245.00 | |
| WW2 German Dennert & Pape Military slide rule | $1162.87 | |
| x-rare Russo-Finnish War WWII Artillery Slide- | $1000.00 | |
| "Thacher Calculator slide rule by Keuffel & Es | $898.00 | |
| MIB Faber Castell 2/84N Mathema Slide Rule | $861.00 | |
| "Stanley Fuller calculator slide rule Model 1, | $710.00 | |
| "Calculimetre Metal Circular Slide Rule,100+Ye | $637.00 | |
| 1966 Keuffel & Esser 68 1400 Analon Slide Rule | $618.00 | |
| Fowler's Calculator Circular Slide Rule w Leat | $566.00 | |
| German WWII Luftwaffe Navigational Slide Ruler | $536.00 | |
| ww2 german dennert&pape luftwaffe military sli | $510.00 | |
| Giant Keuffel & Esser Co. Slide Rule Teaching | $510.00 | |
| ~ FULLER'S SPIRAL SLIDE RULE ~ | $500.00 | |
| K & E 4015-Fuller Slide Rule-STANLEY Maker LON | $482.51 | |
| A.W.Faber Boxwood Slide Rule+Brass Winged Curs | $480.89 | |
| Great Sikes Hydrometer w/ Two Ivry Proofing Sl | $480.51 | |
| Pickett Model X-4 Executive Slide Rule | $427.89 | |
| Vintage Keuffel & Esser slide rule model 68140 | $426.77 | |
| Thatcher's Calculator/ Sliderule/ Keuffel & Es | $400.00 | |
| HUGE K&E KEUFFEL ESSER TEACHING AID DECITRIG S | $382.77 | |
Items with most bids | ||
| C. Durmont Pilot Pro Slide Rule Gold Chrono 8 | 43 | |
| Sun Hemmi Slide Rule #257 Rare | 38 | |
| C. Durmont Pilot Pro Slide Rule Gold Chrono 8 | 35 | |
| SEIKO ULTI PILOT SLIDE RULE. CHRONO SND255P1 | 32 | |
| "Stanley Fuller calculator slide rule Model 1, | 31 | |
| vintage K+E 4081-3 Slide rule with box case an | 29 | |
| "Vintage~KEUFFEL & ESSER CO. Slide Rule, Case | 29 | |
| Large Vintage Slide Rule / Keuffel & Esser | 28 | |
| Vintage Otis King Spiral Slide Rule Model K # | 28 | |
| 1968 GE Sama & Etani Circular Slide Rule 600 b | 26 | |
| MIB Faber Castell 2/84N Mathema Slide Rule | 25 | |
| Constantin Durmont Navigator 8 Diamonds Slide- | 24 | |
| A RARE EARLY BRASS TYPE D OTIS KING'S SLIDE RU | 24 | |
| Vintage Post Versalog Slide Rule 1460 | 24 | |
| "5 1/2"" K&E Keuffel & Esser Slide Rule w/Magn | 23 | |
| Constantin Durmont Navigator 8 Diamonds Slide- | 23 | |
| VINTAGE TEXAS INSTRUMENTS SLIDE RULE CALCULATO | 23 | |
| C. Durmont Pilot Pro Slide Rule Gold Chrono 8 | 23 | |
| "Keuffel & Esser Deci-Lon slide rule case, mor | 22 | |
| SEIKO AEROSPACE PILOT SLIDE RULE CHRONO WATCH | 22 | |
Items with at least one bid | ||
| Average price | $44.16 | |
| Median price | $19.66 | |
| Upper quartile price | $61.00 | |
| Upper decile price | $85.09 | |
Items with no bid | ||
| Average price | $44.40 | |
Prices analysis by day of week | ||
| Day | Average | Median |
| Sun | $51.64 | $17.50 |
| Mon | $39.18 | $15.51 |
| Tue | $36.53 | $19.48 |
| Wed | $48.13 | $24.50 |
| Thu | $40.63 | $19.99 |
| Fri | $46.11 | $21.06 |
| Sat | $44.42 | $20.01 |
Price analysis by day of month | ||
| Day | Average | Median |
| 1 | $34.45 | $13.50 |
| 2 | $61.28 | $17.05 |
| 3 | $36.18 | $20.00 |
| 4 | $40.87 | $15.50 |
| 5 | $45.63 | $19.99 |
| 6 | $49.28 | $16.05 |
| 7 | $40.05 | $18.27 |
| 8 | $37.11 | $17.75 |
| 9 | $46.67 | $32.99 |
| 10 | $33.66 | $18.27 |
| 11 | $58.63 | $78.50 |
| 12 | $52.12 | $16.50 |
| 13 | $44.94 | $17.50 |
| 14 | $39.33 | $15.50 |
| 15 | $33.56 | $19.99 |
| 16 | $44.03 | $20.50 |
| 17 | $63.10 | $26.95 |
| 18 | $34.93 | $19.95 |
| 19 | $40.57 | $16.50 |
| 20 | $47.25 | $18.50 |
| 21 | $47.94 | $20.00 |
| 22 | $32.23 | $20.50 |
| 23 | $47.99 | $26.00 |
| 24 | $30.75 | $22.00 |
| 25 | $51.98 | $29.99 |
| 26 | $39.89 | $37.00 |
| 27 | $63.19 | $19.95 |
| 28 | $30.90 | $13.27 |
| 29 | $44.55 | $23.49 |
| 30 | $37.99 | $29.00 |
Number of sales by maker | ||
| Keuffel and Esser | 385 | |
| Pickett | 324 | |
| Post | 131 | |
| Faber Castell | 94 | |
| Dietzgen | 73 | |
| Sterling | 69 | |
| Sun Hemmi | 52 | |
| Aristo | 34 | |
| Lawrence | 33 | |
| Concise | 25 | |
| Texas Instruments | 17 | |
| AcuMath | 11 | |
| Nestler | 10 | |
| Otis King | 7 | |
| Lafayette | 6 | |
| Thornton | 4 | |
| Fuller | 2 | |
| Fullerton | 1 | |
| Other | 1202 | |