Only those silver coins which were much worn by usage or in any other way defaced or reduced in weight remained in current use; it did not pay to export and to sell them on the bullion market.

只有那些由于经年使用 而严重受到磨损、或因任何方式损坏或损失重量的银币继续流通使用；将这些银币出口以及在黄金市场上销售也不值得。

youdao

The London Bullion Market Association sets the gold fix twice a day and the silver fix once a day.

FORBES: FOCUS: News Of Possible Probe Of London Fixings Raises Eyebrows In Gold Market

The rumor is that some large bullion banks used the Bernanke non-QE mention as a cover to try to create a gold and silver bear market.

FORBES: The Benefits Of Being 'Long-Term Greedy'