ThrillChaser
Tenderfoot
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- Jul 30, 2013
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- #1
Thread Owner
In Treasure Hunters Manual #7 (RAM Edition, pg 156) KvM has a small section on the "duodecimal" system, mentions it was developed by a Phil Congdon, and also mentions it is just a variant of the "six point" or "Star of David" system, which apparently detectives have used for a while.
Can anyone provide information/pointers for further investigation about any of these systems/people?
Thanks
Can anyone provide information/pointers for further investigation about any of these systems/people?
Thanks