With the value of silver being so high, items that are extremely heavy don’t carry much premium because the weight of silver tends to make otherwise willing investors have second thoughts.
An Indiana jeweler asked me about the value of eight dinner plates he purchased. He knew they were old, but wanted me to identify and value them. As with many items, this was a real struggle. He paid $3,000, knowing he could scrap them if he had to for a small profit. The plates are very heavy and almost identical.