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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
· 2: The FBI Vault
· 3: Project Blue Book
· 4: Aliens the Truth
· 5: The Black Vault

 << SGTF Special Operations
POTAM Mandemus
Geocaching Reference Number TB2ADXX

Worth 10 Points (Create an account to enter TB tracking number and earn points!)

 
POTAM Mandemus Tracking Bug ImageCurrent GOAL:
Your TOP SECRET mission (codename Mandemus) is to further this Special Reconnaissance (SR) evidence through any means possible to help it reach its destination at (GC210M6), FBZ A.P.E. 57 "The Forbidden Zone" in San Diego, CA. U.S.A.

About this item:
SGTF speculates this furry pin is a "long lost" promotional item from the 2001 Tim Burton film, Planet of the Apes. Per SGTF's AOR under "Operation Silverback," operatives to help forward this materials item to the A.P.E. 57 cache for further exploration have been initiated.
 
   
     

Operatives who have logged this TB...

  • Honorable Discharge DUCK432
  •  (Mon 09 Mar 2009 @ 18:31:52 GMT; 1236623512 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge CONDORMAN
  •  (Tue 10 Mar 2009 @ 19:56:24 GMT; 1236714984 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • General OESTEADO
  •  (Sun 09 Apr 2017 @ 13:56:45 BST; 1491742605 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge DICKANDALE
  •  (Sun 17 Mar 2024 @ 20:46:41 GMT; 1710708401 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge MAGICN3
  •  (Fri 20 Sep 2024 @ 18:14:28 BST; 1726852468 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge MPARK65
  •  (Fri 20 Sep 2024 @ 19:20:55 BST; 1726856455 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Green Beret FEBONIOCLAN
  •  (Sat 21 Sep 2024 @ 21:26:13 BST; 1726950373 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge MIKE2FIND
  •  (Wed 25 Sep 2024 @ 10:15:02 BST; 1727255702 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge BROTHERSELDOM
  •  (Sat 08 Mar 2025 @ 22:12:21 GMT; 1741471941 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge TREKKERDMC
  •  (Sun 09 Mar 2025 @ 13:39:06 GMT; 1741527546 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge ROCKCHALK
  •  (Sun 09 Mar 2025 @ 22:16:46 GMT; 1741558606 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge FLAGMAN
  •  (Sun 27 Jul 2025 @ 12:37:56 BST; 1753616276 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).