The link between Silver and Beans was a little different. They were not in the same pit, they were nearby each other and traders could trade in either.
During the great 70’s bull run in Beans, the locals were making out like bandits and were awash in cash, so whenever Beans got locked in limit up, because the Locals had nothing else to do for the rest of the day, they walked over to the silver pit and traded silver.The trend was already bullish and after trading Beans, not even silver scared them. they’d ram it higher….. for fun….After a while people noticed that if beans were bid, it wasn’t long before Silver was as well…..Hence the link.