This image shows the exchange building of Amsterdam in the early-modern era, known as the Hendrick de Keyser Exchange, after the building’s architect. It no longer exists. After two centuries of subsidence problems, the city decided to tear it down in the 19th century. It used to stand just south of Dam Square, where it was built over the watercourse of the Amstel River—small vessels could pass underneath. This had probably been too ambitious for the early 17th-century builders and caused the subsidence problems. From August 1611, when the exchange building opened, this was the place where most share transactions were negotiated. But it was not a stock exchange as…