C.S. Osborne No. 510 Open Ended Tailors Thimbles
– Nickel plated brass
– Coarse Grate
– Available in 7 different sizes and sized in ascending order
| Ref. | Inside Diameter of Base | Weight | UPC No. |
| 510-5 | 13.80 mm | 5g | 67650 |
| 510-7 | 14.25 mm | 4g | 67652 |
| 510-9 | 15 mm | 4g | 67654 |
| 510-10 | 15.5 mm | 4g | 67656 |
| 510-11 | 16.70 mm | 4g | 67658 |
| 510-12 | 17.25 mm | 3g | 67660 |
| 510-13 | 18.40 mm | 3g | 67662 |