KvW means inspection service of Waren
Today this organization is known as Food and goods Authority (VWA). The Food and goods Authority is the government organization that examines and monitors the safety of food and consumer products. The Food and goods Authority ensures the protection of human and animal health. It monitors the safety of food and consumer products and animal welfare. The VWA works within the entire production chain: from raw material and auxiliary material to final product or consumption
. Source: www.vwa.nl