Case Tested Jack knife
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woodwalker
- Posts: 6111
- Joined: Mon Jan 16, 2017 12:52 am
Case Tested Jack knife
My buddy just gifted me a yellow handed Case Tested Jack knife. Its 3 and a quarter inches long. Can someone help me identify the pattern number? I put this 8n the General Discussion thread as well. Sorry for the excitement!
thanks in advance! 
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knifeaholic
- Gold Tier

- Posts: 5598
- Joined: Fri Feb 03, 2006 3:41 am
- Location: Central Massachusetts
Re: Case Tested Jack knife
It is a 42087. The handle material is white synthetic, it tends to yellow with age.
Steve Pfeiffer, author of Collecting Case Knives: Identification and Price Guide published by Krause Publications.
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woodwalker
- Posts: 6111
- Joined: Mon Jan 16, 2017 12:52 am
Re: Case Tested Jack knife
Thank you so much Steve! Appreciate you.knifeaholic wrote: ↑Mon Sep 22, 2025 1:53 pm It is a 42087. The handle material is white synthetic, it tends to yellow with age.