The Case Cheetah knife, or 11 1/2″ pattern, has been around since the pre – 1920 W.R. Case & Sons, Bradford, PA days and is highly sought after by collectors.  The Cheetah name was first used around 1970.  Most measure 4 3/8″ closed and feature a swing guard and a lock for the single clip point blade.

Case XX USA 6111 1/2 Cheetah knife
Case XX USA 9 Dot (1971) 6111 1/2 knife

The swing guard was added to the Case Cheetah knife during the Tested XX era.  Handle materials feature genuine stag, bone and the rare green bone as well.   Check out my vintage Case XX knives page.  I appreciate any traffic from these links as I earn a commission when an item is purchased, at no extra cost to you.

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1971 Case Cheetah 5111-1/2 L BEAUTIFUL STAG

$950.00  
End Date: Wednesday Apr-15-2026 17:01:40 EDT
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Case knife 1970 10 DOT CHEETAH 6111 1/2

$499.50  

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Case XX 6111 1/2L 6 Dot Cheetah Lock Back Bone Handles Swing Guard Near Mint

$195.00  
End Date: Sunday Apr-19-2026 10:50:27 EDT
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CASE CHEETAH CUB MINT IN BOX NEW NEVER USED

$205.00  

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VINTAGE CASE XX USA 1970 10 DOT 6111 1/2 L RED BONE POCKET WORN CHEETAH KNIFE

$129.50  (26 bids)
End Date: Wednesday Apr-15-2026 18:05:01 EDT

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Case XX Collectors Club Life Member 611 1/2L SS Blue Cheetah Cub Knife

$299.99  
End Date: Wednesday Apr-15-2026 09:19:11 EDT
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Case XX Tested 1920-1940 Green Bone Cheetah

$1,500.00  

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