How to pronounce 白銀 in Cantonese (3 out of 4):

發行『白銀券』(Silver Certificate)」
And they issued a Silver Certificate.

Cantonese Sentence Breakdown

發行 faat3 hang4
issue
白銀 baak6 ngan4
silver
hyun3
bond (esp. document split in two, with each party holding one half)
contract
deed (i.e. title deeds)
ticket
voucher
certificate
arch