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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1975 (5 Dot) Case XX 6111 1/2 L Brown Bone CHEETAH Knife RARE

$229.99  
End Date: Friday Jul-11-2025 20:55:19 EDT
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VTG 1980 CASE 6111-1/2L BONE CHEETAH LOCKBACK MINT POCKET KNIFE CASE BOX & WRAP

$183.50  (19 bids)
End Date: Thursday Jul-17-2025 21:00:01 EDT

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Case xx Stag Cheetah!

$242.50  (39 bids)
End Date: Sunday Jul-13-2025 21:45:33 EDT

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VINTAGE 1976 CASE # 5111-1/2L SSP STAG CHEETAH LOCKBACK NMINT POCKET KNIFE & BOX

$201.50  (14 bids)
End Date: Sunday Jul-13-2025 21:00:01 EDT

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1970 CASE XX/10 DOT (#6111-1/2L) RED BONE "CHEETAH" POCKET KNIFE- MINTY/RARE!!

$999.99  
End Date: Tuesday Jul-15-2025 21:41:00 EDT
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Case XX USA 1965-69 Red Bone Cheetah 6111 1/2 Unused

$499.99  
End Date: Wednesday Jul-16-2025 21:18:57 EDT
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VINTAGE CASE XX 5111 1/2L STAG CHEETAH KNIFE FROM BLUE SCROLL SET - GREAT STAG

$330.00  (35 bids)
End Date: Saturday Jul-12-2025 11:42:54 EDT

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Case Classic 6111 1/2L Cheetah 1996 Tan Bone BM Shield 1 of 36

$340.00  
End Date: Monday Jul-14-2025 11:51:05 EDT
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