Hello, What is the menaning oc counting-rooms?

Hello, What is the menaning oc counting-rooms?

… counting-rooms of the “City” … rooms, offices used for keeping books and transacting business. (Merriam-Webster)

So keeping books – accountancy – is to count money. Where that happened was called counting rooms.

Cool. counting rooms = rooms in which bookkeeping or accounting takes place. I don’t know if I have ever come across this term. Interesting.