Null PIe (PI) Mystery Cache
OF-Erad: It's had a good run. Thanks to all that found it!
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Difficulty:
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Terrain:
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Size: 
(small)
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Just off the street, easy to walk right by on the sidewalk.
This cache is about 4 feet off the ground, sitting on the off street side of a post between 2 black metal containers that get stuffed by a government employee 6 days a week.
It is a Gray in colored box with a front hinged door that lifts up and can be locked in place.
Inside is the log. The Outside Lock is opened with a 4 digit tumbler combination. Combination Puzzle = NULL PIe ( PI ). There is a small bag of Coins from all over the world. Please Feel free to exchange or take a coin as a Souvenir. I will add more as they dwindle down in numbers.
## NOTE, to close the lock, you must leave it set to the combination you used to open it, and then once closed, spin the tumblers.
FTF was rob14erguy, Congrats! Was great meeting you Rob!
Additional Hints
(Decrypt)
Pbzovangvba = AHYY CVr ( CV )