Are the COMEX and LBMA bullion banks that desperate that they are now scraping the proverbial bottom of the London gold vaults, planning to deliver the GC 100 contract into long forgotten 400 oz gold bars in deep storage under the Bank of England?

Is there such an upcoming shortage of physical silver that the COMEX needs to approve every silver refinery on the planet, both current and former, so as to have a large enough universe of silver bars to tap including long forgotten silver bar brands?