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Case XX 5111, 6111 Cheetah 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 |
| 1940 - 1964 | 6111 1/2 L | Bone | Lockback | $700.00 |
| 1940-1964 | 6111 1/2 L | Red Bone | Lockback | $1100.00 |
| 1940-1964 | 6111 1/2 L | Greenbone | Lockback | $1800.00 |
| 1965 - 1969 | 6111 1/2 L | Pretty bone | Lockback | $400.00 |
| 1965-1969 | 6111 1/2 L | Pretty bone | Lockback extra 1 in pattern number | $1100.00 |
| 1965-1969 | 6111 1/2 L | Pretty bone | Lockback no pattern number | $1000.00 |
| 1970 | 5111 1/2 L SSP | Stag | Cheetah Etch RARE | $4000.00 |
| 1970 | 6111 1/2 L | Bone | Lockback | $350.00 |
| 1971 | 5111 1/2 L SSP | Stag | Cheetah Etch | $600.00 |
| 1971 | 6111 1/2 L | Bone | Lockback | $200.00 |
| 1972 | 6111 1/2 L | Bone | Lockback | $150.00 |
| 1973 | 6111 1/2 L | Bone | Lockback | $150.00 |
| 1974 | 6111 1/2 L | Bone | Lockback | $140.00 |
| 1975 | 6111 1/2 L | Bone | Lockback | $140.00 |
| 1976 | 5111 1/2 L SSP | Stag | Razor Edge Set | $225.00 |
| 1976 | 6111 1/2 L | Bone | Lockback | $140.00 |
| 1977 | 5111 1/2 L SSP | Stag | Engraved Blue Scroll Set | $375.00 |
| 1977 | 5111 1/2 L SSP | Stag | Blue Scroll Set | $225.00 |
| 1977 | 6111 1/2 L | Bone | Lockback | $140.00 |
| 1978 | 6111 1/2 L | Bone | Lockback | $140.00 |
| 1979 | 6111 1/2 L | Bone | Lockback | $130.00 |
| 1980 | 6111 1/2 L | Bone | Lockback | $150.00 |
| 1981 | 6111 1/2 L | Bone | Lockback | $130.00 |
| 1989 | 5111 1/2 | genuine stag | no swing guard - tested centennial | $83.00 |
| 1996 | R5111 1/2 | red genuine stag | no swing guard | $71.00 |
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