| Slide Rules HOME page | PRICES | < SITE MAP > |
Detailed analysis from 01-Jan-2008 to 31-Jan-2008 | ||
| Number of bidded items | 1788 | |
| Number of unbidded items | 761 | |
| Total sales | $ 76435 | |
Most expensive items | ||
| 1890's Thacher's Calculating Slide Rule Keuffe | $2145.00 | |
| ESTATE SWISS BREITLING CHRONOMAT SLIDE RULE ME | $1480.00 | |
| Swiss Made Revue Thommen Pilot Pro Slide Rule | $775.00 | |
| VINTAGE K&E 1966 ANALON SLIDE RULE WITH CASE | $585.00 | |
| 19th c. Antique Stanley Boucher slide rule cal | $571.39 | |
| "OLD IVORY/BONE? KEUFFEL& ESSER Co. N.Y. 6"" S | $565.55 | |
| K & E Thacher Calculator slide rule reproducti | $551.41 | |
| K&E 68-1400 ANALON Engineering Analysis Slide | $535.25 | |
| "Early 5"" K&E Slide Rule with Metal Indicator | $511.93 | |
| K&E 4082-3 Radio Engineering Problems Slide Ru | $465.86 | |
| Old Boxwood Meter Long Slide Rule w/Case - Dre | $456.00 | |
| Bamboo Pickett B1 Slide Rule Walnut Case New U | $371.00 | |
| SEIKO CHRONOGRAPH SLIDERULE CALCULATOR 6138-70 | $322.50 | |
| Four Slide Rules Assortment | $308.03 | |
| Aristo 0972 Hyperlog advanced slide rule NOS i | $280.00 | |
| Pickett 'Douglas Sky Rule' Slide Rule -Model 1 | $271.66 | |
| Keuffel & Esser Co. Stadia Slide Rule Pat. Dat | $263.00 | |
| Antique Wood Taverne Gravet Slide Rule in Wood | $240.19 | |
| Citizen Eco-Drive NiteHawk Pilot Slide Rule BJ | $239.99 | |
| Pickett N4-ES Slide Rule w/ Magnifier & Fitted | $229.99 | |
Items with most bids | ||
| Constantin DurmontŪ Navigator Slide Rule Pilot | 42 | |
| VINTAGE SWANK SLIDE RULE TIE BAR WITH GIFT BOX | 40 | |
| "POST Versalog slide rule kit w/ case, manual | 31 | |
| Constantin DurmontŪ Navigator Slide Rule Pilot | 29 | |
| Constantin DurmontŪ Navigator Slide Rule Pilot | 28 | |
| Sun Hemmi Bamboo Chemical Engineering Slide Ru | 28 | |
| Pickett Model N4-T All Metal Log Log Slide Rul | 27 | |
| Keuffel & Esser Log Duplex Decitrig 4081-3 Sli | 27 | |
| Constantin DurmontŪ Navigator Slide Rule Pilot | 27 | |
| "Faber-Castell Addiator Slide Rule Orig Box, C | 26 | |
| Constantin Durmont Navigator 8 Diamonds Slide- | 25 | |
| RARE PICKETT N4-ES SLIDE RULE W LEATHER CASE M | 24 | |
| SEIKO PILOT SLIDE RULE SplitSecond CHRONOGRAPH | 23 | |
| SEIKO AEROSPACE PILOT SLIDE RULE CHRONO WATCH | 23 | |
| SEIKO AEROSPACE PILOT SLIDE RULE CHRONO WATCH | 23 | |
| Constantin Durmont Navigator 8 Diamonds Slide- | 23 | |
| SEIKO ULTIMATE PILOT SLIDE RULE CHRONO100M WR | 23 | |
| Authentic Antique German Spiral Slide Rule Cal | 23 | |
| 55MM GOLD & 'DIAMOND' AUTO NAVIGATOR PILOT SLI | 23 | |
| SEIKO SKYBlue Navigator Pilot SlideRule W/Chro | 22 | |
Items with at least one bid | ||
| Average price | $42.75 | |
| Median price | $20.49 | |
| Upper quartile price | $70.00 | |
| Upper decile price | $82.99 | |
Items with no bid | ||
| Average price | $49.48 | |
Prices analysis by day of week | ||
| Day | Average | Median |
| Sun | $43.83 | $19.99 |
| Mon | $45.18 | $18.61 |
| Tue | $40.94 | $20.50 |
| Wed | $38.34 | $21.00 |
| Thu | $48.50 | $22.55 |
| Fri | $40.25 | $21.00 |
| Sat | $41.71 | $20.49 |
Price analysis by day of month | ||
| Day | Average | Median |
| 1 | $41.07 | $26.00 |
| 2 | $45.30 | $31.00 |
| 3 | $52.39 | $27.65 |
| 4 | $47.08 | $34.00 |
| 5 | $55.03 | $27.56 |
| 6 | $50.02 | $26.00 |
| 7 | $38.92 | $32.00 |
| 8 | $40.48 | $16.99 |
| 9 | $33.12 | $18.50 |
| 10 | $68.34 | $22.49 |
| 11 | $34.52 | $22.49 |
| 12 | $36.35 | $17.49 |
| 13 | $62.39 | $22.49 |
| 14 | $62.45 | $20.00 |
| 15 | $44.02 | $20.50 |
| 16 | $37.21 | $16.50 |
| 17 | $46.92 | $36.99 |
| 18 | $50.31 | $20.00 |
| 19 | $45.58 | $22.50 |
| 20 | $38.32 | $20.46 |
| 21 | $43.17 | $17.38 |
| 22 | $41.48 | $20.19 |
| 23 | $37.39 | $18.27 |
| 24 | $31.66 | $20.50 |
| 25 | $32.55 | $20.50 |
| 26 | $32.85 | $19.95 |
| 27 | $31.46 | $16.49 |
| 28 | $29.64 | $14.95 |
| 29 | $37.55 | $26.77 |
| 30 | $39.38 | $23.06 |
| 31 | $39.22 | $20.50 |
Number of sales by maker | ||
| Keuffel and Esser | 376 | |
| Pickett | 338 | |
| Post | 146 | |
| Faber Castell | 83 | |
| Dietzgen | 62 | |
| Sterling | 56 | |
| Sun Hemmi | 50 | |
| Aristo | 44 | |
| Concise | 34 | |
| Lawrence | 19 | |
| AcuMath | 18 | |
| Nestler | 15 | |
| Texas Instruments | 14 | |
| Lafayette | 6 | |
| Otis King | 4 | |
| Fuller | 1 | |
| Fullerton | 1 | |
| Thornton | 0 | |
| Other | 1282 | |