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  Silverback Cipher  
 
Silverback hunters should be familiar with the “pigpen” or masonic cipher, which is a simple substitution cipher exchanging letters for symbols based on a grid.

This cipher can be used to decrypt directions and secret codewords at FBZ geocaches!

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  · 1: The CIA Vault
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· 3: Project Blue Book
· 4: Aliens the Truth
· 5: The Black Vault

 << SGTF Special Operations
POTAM Dirty Ape
Geocaching Reference Number TBAFM3M

Worth 80 Points (Create an account to enter TB tracking number and earn points!)

 
POTAM Dirty Ape Tracking Bug Image
Current GOAL:
Operatives can discover this intelligence (codename DIRTY APE) as part of one of the classified Operation Silverback missions.

Its discovery is worth 80 points towards an operative's rank on this Web site!

About this item:
Its true whereabouts are unknown, but most suspect this TOP SECRET evidence is maintained in an undisclosed location in the mountains of Southern California.
 
   
     

Operatives who have logged this TB...

  • Honorable Discharge FLAGMAN
  •  (Thu 01 Jun 2023 @ 21:40:24 BST; 1685652024 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge THEJJDUO
  •  (Wed 28 Jun 2023 @ 11:00:04 BST; 1687946404 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Green Beret STANSD
  •  (Wed 28 Jun 2023 @ 13:02:11 BST; 1687953731 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge DICKANDALE
  •  (Thu 07 Mar 2024 @ 18:35:40 GMT; 1709836540 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge MPARK65
  •  (Wed 12 Jun 2024 @ 8:59:26 BST; 1718179166 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge MAGICN3
  •  (Wed 12 Jun 2024 @ 12:29:11 BST; 1718191751 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge MIKE2FIND
  •  (Tue 01 Oct 2024 @ 11:46:46 BST; 1727779606 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge ROCKCHALK
  •  (Sun 09 Mar 2025 @ 21:48:14 GMT; 1741556894 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge BROTHERSELDOM
  •  (Sun 16 Mar 2025 @ 21:13:02 GMT; 1742159582 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge TREKKERDMC
  •  (Mon 17 Mar 2025 @ 12:15:21 GMT; 1742213721 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
   

 
   Operation Silverback Prize Ring SILVERBACK Prize Rings

Those who create an account on fbz.geocaches.org and enter mission codewords and POTAM tracking bug numbers receive points towards an Operative ranking. Operatives who achieve the rank of General (700 points) are eligible to receive an official silver Operation Silverback GC.com trackable ring from Oakcoins. Gold rings are available for those who reach the rank of Green Beret (or higher).