Sentence:  He then drew out a large leathern bag, and poured out the contents, which were ſilver <WSD>cobs</WSD>, upon the table. 
Meaning of the word marked with <WSD> tags:  Any of the gold and silver coins that were minted in the Spanish Empire and valued in reales or escudos, such as the piece of eight—especially those which were crudely struck and irregularly shaped.