steward

I am curious about what personal items Chief Steward Andrew Latimer would have carried on himself while working aboard the Titanic. Did he only have keys and perhaps a small book, or something else?

(I am not sure if this has been asked before—if it has, feel free to merge my query with the relevant thread.) If a passenger wanted, for example, to tip a steward, or to pay for a meal at the à la carte restaurant, would they have done so in British pounds or American dollars?