How warships obtained money on distant deployments

How did ships maintain liquid cash reserves during long overseas deployments?

They carried specie such as silver or gold, and local British agents could advance funds or supplies for later reimbursement from Britain.

Long deployments required captains to pay for provisions and services far from a home dockyard. Ships could carry silver, gold, or other specie as a working reserve. Where a British agent was established, that agent might advance money or support to the ship and later recover the expense from the government in Britain. Those arrangements added finance to the intelligence and supply relationships sustaining Hillyar's blockade outside Valparaíso.