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Case XX 6380 Whittler knife price guide
Be sure to check out the W.R. Case pocket knives up for sale in the AAPK member store when you get finished with the knife value guides!
| Year | Pattern Number | Handle Description | Other Discerning Features | Estimated Market Value |
| 1965 - 1969 | 6380 | reddish bone | no | $243.00 |
| 1970 | 6380 | reddish bone | no | $268.00 |
| 1971 | 6380 | reddish bone | no | $193.49 |
| 1972 | 6380 | reddish bone | no | $170.00 |
| 1973 | 6380 | bone | no | $134.85 |
| 1973 | 6380 | reddish bone | no | $164.61 |
| 1973 | 6380 | delrin | no | $66.05 |
| 1974 | 6380 | reddish bone | no | $159.52 |
| 1976 | 4380 | white composit | NKCA knife | $124.00 |
| 1976 | 6380 | reddish bone | no | $141.00 |
| 1976 | 6380 | delrin | no | $56.00 |
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