The Spanish had set the standard on how to put down gold and silver fast in a hurry and marking it for possible retrieval later...So therefore when you see 👀 Spanish symbols and the same Spanish mining symbols in the south with the confederates in thier efforts of hiding the gold and silver mines , and those same symbols with the Japanese in WW2 in the Phillipines and the way they hid their gold deposits....fast and in a hurry ...understanding that the Japanese conquests of the pacific and the pacific islands started in the 1860s same time as the American civil war in America...the triangle of rocks or trees with symbols gives you the triangulation on the hidden mine locations and the covered entrances ...which were utilized as make shift vaults for wealth and in emergencies they could be sealed up...