| Slide Rules HOME page | PRICES | < SITE MAP > |
Detailed analysis from 01-Apr-2007 to 30-Apr-2007 | ||
| Number of bidded items | 1830 | |
| Number of unbidded items | 669 | |
| Total sales | $ 71376 | |
Most expensive items | ||
| Thacher's Calculating Inst Keuffel & Esser Sli | $1625.00 | |
| Early K & E SlideRule Wm COX. PAT.Oct. 6.1891w | $1578.00 | |
| K&E 4081-3 Braille Log Log Duplex Decitrig Sli | $1304.33 | |
| ZENO-WATCH BASEL SLIDE RULE CHRONOGRAPH 48MM N | $1026.00 | |
| Thacher's Calculating Instrument Slide Rule | $990.00 | |
| "VINTAGE CIRCULAR SLIDE RULE"" ROTARULE"" DIET | $860.00 | |
| So Rare Vintage TESA SA MAXIMATIC Slide Rule c | $430.00 | |
| "SIC Model 1580 Slide Rule, like new in box" | $407.75 | |
| "SIC Model 1570 Slide Rule, like new in box" | $390.75 | |
| "Antique Fowler ""Magnum"" Circular Slide Rule | $383.89 | |
| "PERÚ:SLIDE RULE,ARISTO,Nr. 10 065, HAMBURG, 1 | $365.00 | |
| 1891 RARE KEUFFEL & ESSER SLIDE RULE & ex/ SLI | $365.00 | |
| "Cleveland Institute of Electronics, Training | $330.50 | |
| Extremely rare swiss cylindrical slide rule LO | $326.69 | |
| 4 Foot Wood Pickett N 500 ES Instructor Slide | $316.99 | |
| "20"" K&E N4081-5S Log Log Duplex Decitrig Sli | $311.59 | |
| 600-ES SLIDE RULE PICKETT N.O.S. THESE WENT TO | $301.00 | |
| Faber-Castell Novo-Biplex 2/83 N slide rule | $300.00 | |
| 600-ES SLIDE RULE PICKETT N.O.S. THESE WENT TO | $276.99 | |
| "Faber-Castell Slide Rule, 2/83N , New in Box" | $270.99 | |
Items with most bids | ||
| SEIKO AEROSPACE PILOT SLIDE RULE CHRONO WATCH | 33 | |
| RARE VINTAGE LARGE 4FT LONG PICKETT SLIDE RULE | 33 | |
| C. Conrad Air Commander Chrono Diamond Steel S | 27 | |
| "20"" K&E N4081-5S Log Log Duplex Decitrig Sli | 27 | |
| BLUE SEIKO PILOT SLIDE RULE CHRONOGRAPH WATCH | 24 | |
| BLUE SEIKO PILOT SLIDE RULE CHRONOGRAPH WATCH | 23 | |
| SEIKO CHRONOGRAPH PILOT AVIATION SLIDERULE WAT | 23 | |
| C. Conrad Air Commander Chrono Diamond Gold Sl | 23 | |
| SEIKO AEROSPACE PILOT SLIDE RULE CHRONO WATCH | 23 | |
| C. Conrad Air Commander Chrono Diamond Steel S | 22 | |
| SEIKO CRITERIA CHRONOGRAPH PILOT SLIDERULE WAT | 22 | |
| "Antique Fowler ""Magnum"" Circular Slide Rule | 21 | |
| "K+E Slide Rule 4181-1 w/Leather cse 7"" Keuff | 21 | |
| SEIKO AEROSPACE PILOT SLIDE RULE CHRONO WATCH | 21 | |
| SEIKO AEROSPACE PILOT SLIDE RULE CHRONO WATCH | 21 | |
| SEIKO AEROSPACE PILOT SLIDE RULE CHRONO WATCH | 21 | |
| SEIKO AEROSPACE PILOT SLIDE RULE CHRONO WATCH | 20 | |
| SEIKO CRITERIA CHRONOGRAPH PILOT SLIDERULE WAT | 20 | |
| Tie Clip Slide Rule | 20 | |
| Early K & E SlideRule Wm COX. PAT.Oct. 6.1891w | 20 | |
Items with at least one bid | ||
| Average price | $39.00 | |
| Median price | $17.50 | |
| Upper quartile price | $47.00 | |
| Upper decile price | $85.25 | |
Items with no bid | ||
| Average price | $18.23 | |
Prices analysis by day of week | ||
| Day | Average | Median |
| Sun | $37.35 | $15.50 |
| Mon | $40.40 | $16.45 |
| Tue | $49.99 | $23.50 |
| Wed | $35.85 | $19.00 |
| Thu | $37.82 | $15.55 |
| Fri | $34.92 | $23.50 |
| Sat | $38.65 | $16.51 |
Price analysis by day of month | ||
| Day | Average | Median |
| 1 | $44.25 | $16.50 |
| 2 | $25.64 | $13.00 |
| 3 | $41.10 | $18.00 |
| 4 | $41.06 | $24.99 |
| 5 | $43.64 | $17.59 |
| 6 | $43.80 | $32.00 |
| 7 | $25.60 | $13.63 |
| 8 | $28.37 | $13.51 |
| 9 | $39.90 | $22.50 |
| 10 | $35.63 | $20.50 |
| 11 | $40.95 | $31.00 |
| 12 | $31.54 | $18.49 |
| 13 | $27.59 | $19.95 |
| 14 | $40.59 | $20.03 |
| 15 | $42.80 | $15.01 |
| 16 | $30.61 | $14.95 |
| 17 | $54.99 | $31.00 |
| 18 | $27.42 | $15.70 |
| 19 | $33.84 | $15.55 |
| 20 | $39.94 | $29.45 |
| 21 | $48.90 | $17.50 |
| 22 | $34.82 | $15.50 |
| 23 | $48.20 | $22.27 |
| 24 | $69.25 | $21.61 |
| 25 | $35.57 | $15.50 |
| 26 | $42.54 | $15.52 |
| 27 | $28.45 | $16.82 |
| 28 | $32.98 | $15.00 |
| 29 | $35.87 | $18.50 |
| 30 | $65.95 | $20.51 |
Number of sales by maker | ||
| Pickett | 376 | |
| Keuffel and Esser | 372 | |
| Post | 166 | |
| Faber Castell | 92 | |
| Dietzgen | 84 | |
| Aristo | 70 | |
| Sun Hemmi | 62 | |
| Sterling | 39 | |
| Nestler | 35 | |
| Lawrence | 26 | |
| Concise | 18 | |
| Texas Instruments | 18 | |
| AcuMath | 11 | |
| Otis King | 4 | |
| Thornton | 3 | |
| Lafayette | 3 | |
| Fuller | 1 | |
| Fullerton | 1 | |
| Other | 1118 | |