NZG, otherwise known as Nurnberger Zinkdruckguss models, began in Nurnburg, Germany, in 1968, by producing an assortment of construction vehicles.
The company stuck with the heavy equipment theme till 1984, when a series of 1:43 scale Porsches and 1:35 scale Mercedes-Benz models were introduced, along with a few trucks and buses. A large assortment of current models is available from Toys for Collectors and other fine toy and model dealers. According to an undated but recent NZG catalog, NZG was for some time distributed by Schuco Toy Co., Inc., New York, likely a division of Schuco of Germany.
Website in English: www.nzg.de
What's it worth? Take a look at this Nzg price guide: sold listings for a value indication.