 | 1908 Slide Rule Manual Circular Calculator Engineering |  | $5.06 | $1.95 | | US | 11d 21h 8m |
 | Rare Russian Ussr Circular Slide Rule In Box | | $36.00 | $15.00 | 5 | RU | 6h 43m |
 | Vintage Circular Slide Rule Anyone Can Use | | $10.50 | $ | 5 | US | 1d 14h 24m |
 | Rare Russian Ussr Circular Slide Rule (2) | | $41.00 | $15.00 | 2 | RU | 6h 46m |
 | Old Vtg Pickett Circular Trig Slide Rule W/ Orig Leather Case And How To Guide | | $39.56 | $ | 5 | US | 23h 39m |
 | Concise Circular Slide Rule With Case | | $39.95 | $0.00 | | US | 5d 0h 5m |
 | Antique 1931 Circular Rule Disk O Knowledge- Usa Speed Geography- | | $22.00 | $0.00 | 0 | US | 2h 39m |
 | Vintage Pickett Circular Round Trig Slide Rule W/ Orig Leather Case And How To G | | $51.00 | $ | 4 | US | 4d 2h 41m |
 | Concise Pocket-Size Science Tables And Circular Slide Rule By Sama & Etani | | $13.06 | $5.00 | 2 | US | 3d 23h 34m |
 | Mint A-Bomb Nuclear Yield Circular Slide Rule Calculator Set M28 Fsn 66658978697 | | $19.95 | $ | 0 | US | 6d 0h 32m |
 | Ultra Rare Russian Soviet Ussr Round Pocket Calendar Circular Slide 1969-1990 | | $44.99 | $15.00 | | UA | 27d 5h 54m |
 | 1968 Concise Circular Slide Rule Model 600 Sama & Etani Dow Chemical | | $13.06 | $3.00 | 2 | US | 6d 0h 10m |
 | Concise Circular Slide Rule | | $14.95 | $2.00 | 1 | US | 2d 0h 5m |
 | Concise #28 Circular Slide Rule With Case And Instruction Book - 3 1/8" Japan | | $9.99 | $4.95 | 1 | US | 6d 0h 32m |
 | Frederick Post Circular Midget Slide Rule ~ W/ Case & Instructions | | $9.99 | $0.00 | 0 | US | 6d 23h 31m |
 | Logarithmic Circular Slide Rule Kl-1 Vintage Ultra Rare Soviet Russian 60-70S | | $44.50 | $15.00 | | UA | 24d 12h 29m |
 | Circular Slide Rule: Bitumen Volume Calculator: Spraypave Perth: Vintage: Japan | | $18.76 | $18.71 | 1 | AU | 2d 6h 55m |
 | Pickett 101-C Circular Slide Rule---- Vintage | | $30.00 | $7.49 | 0 | US | 6d 23h 35m |
 | A Vintage Takeda's "Concise" Circular Slide Rule No. 28 From Japan. | | $15.78 | $5.85 | 2 | GB | 3d 16h 18m |
 | Shopsmith Miter Finder & Board Feet Calculator Circular Slide Rule | | $5.00 | $3.00 | 4 | US | 4d 0h 42m |