Babson Outing Club (BOC) Cache No. 16 - Stuck Between A Rock (Market) And A Hard Place

RULES: NO USING GOOGLE FOR THIS CACHE, THANK YOU. AS BABSON'S ADMIN ALWAYS SAYS: ACADEMIC DISHONESTY IS PUNISHABLE BY DEATH SUSPENSION 
Going to the posted coordinates will take you not to the cache, but rather a unique plaque commemorating an unusual event. On September A, 19BC, our quirked-up swagalicious founder, Roger Babson did something quite incredible. He predicted the stock market crash that lead to the Great Depression BEFORE it happened in 19DE! If there weren't lots of historical evidence, including eye-witnesses, I wouldn't have believed it myself! Thus a plaque was commissioned by the President of Babson from 19FG to 19HI.
The cache is (C-B)E meters away from the cache at a bearing of GIE. Parenthesis ≠ Multiplication. Good luck!
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IMPORTANT: THIS CACHE HAS BEEN PLACED BY A BABSON COLLEGE CLUB WITH THE PERMISSION AND FUNDING OF THE COLLEGE. PLEASE MENTION THIS IF CAUGHT BY MUGGLES AND USE UTMOST STEALTH.