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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!

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

 << SGTF Special Operations
POTAM E.B.E.
Geocaching Reference Number TB1773P

Worth 60 Points (Create an account to enter TB tracking number and earn points!)

 
POTAM E.B.E. Tracking Bug Image
Current GOAL:
Operatives can discover this intelligence (codename E.B.E.) as part of the final classified Operation Silverback mission. The tracking number for this discovery is listed as the CASE NUMBER on the E.B.E.'s toe tag!

Its discovery is worth 60 points towards an operative's rank on this Web site!

About this item:
Its true whereabouts are unknown, but most suspect this small, deceased "big-headed" Grey clone is hidden in an undisclosed location in the mountains of Southern California.

Please do not remove this "resident" from his current location. He is meant for discovery only!
  
   
     

Operatives who have logged this TB...

  • Honorable Discharge CONDORMAN
    •  (Wed 24 Mar 2010 @ 5:57:09 GMT; 1269410229 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge FLAGMAN
    •  (Thu 25 Mar 2010 @ 13:34:29 GMT; 1269524069 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge THEJJDUO
    •  (Sat 27 Mar 2010 @ 17:11:06 GMT; 1269709866 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge MIKE6X6
    •  (Fri 30 Apr 2010 @ 16:53:54 BST; 1272642834 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge BLONDHILITES
    •  (Sun 12 Jun 2011 @ 23:17:37 BST; 1307917057 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • General DILLWEED
    •  (Mon 13 Jun 2011 @ 9:17:07 BST; 1307953027 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • General FISNJACK
    •  (Mon 13 Jun 2011 @ 10:13:28 BST; 1307956408 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Green Beret BKIP
    •  (Mon 13 Jun 2011 @ 19:12:31 BST; 1307988751 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • General RAGFOOT
    •  (Mon 13 Jun 2011 @ 20:44:49 BST; 1307994289 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Green Beret STANSD
    •  (Sat 10 Mar 2012 @ 21:29:55 GMT; 1331414995 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Lieutenant Colonel BALCANTHEZ
    •  (Sun 25 Mar 2012 @ 11:56:14 BST; 1332672974 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • General OESTEADO
    •  (Sun 09 Apr 2017 @ 14:02:14 BST; 1491742934 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge DICKANDALE
    •  (Mon 23 Sep 2024 @ 16:03:43 BST; 1727103823 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge MAGICN3
    •  (Mon 14 Oct 2024 @ 18:47:51 BST; 1728928071 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Green Beret FEBONIOCLAN
    •  (Mon 14 Oct 2024 @ 19:50:06 BST; 1728931806 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge MPARK65
    •  (Tue 15 Oct 2024 @ 9:53:36 BST; 1728982416 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge MIKE2FIND
    •  (Tue 15 Oct 2024 @ 15:56:12 BST; 1729004172 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge ROCKCHALK
    •  (Mon 10 Mar 2025 @ 18:49:26 GMT; 1741632566 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge BROTHERSELDOM
    •  (Sun 23 Mar 2025 @ 15:04:00 GMT; 1742742240 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
  • Honorable Discharge TREKKERDMC
    •  (Sun 23 Mar 2025 @ 22:50:18 GMT; 1742770218 seconds since Unix Epoch (POSIX) 01 Jan 1970 00:00:00 UTC)
   

 


*Disclaimer: Stories here and at FBZ caches are a combination of historical conjecture, anecdote and pure fiction. Any similarity to any event, group, or person living or dead is merely coincidental. Additionally, SGTF has utilized a variety of signs/stickers as props in the FBZ geocaching series. Labels or warnings (e.g. biohazard, radioactive, etc.) which are fictitious will display some form of the SGTF/Silverback moniker; all other warning signage encountered during this or any other FBZ adventure should be respected and observed as posted.


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   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).