The base metal jeton became popular as a counter for use in the gaming houses which were increasing in number in the early 17th century. This use of the jetons was to continue until the beginning of the 20th century. Some of the later base metal jetons were also produced for advertising purposes. One of the Nuremberg producers, the Lauer family, is also well known for the production of a series of 'Toy' coins - minature coins probably mainly intended for use in dolls' houses. These were produced from the late 1880's until about 1906. The Lauer firm was in the family's hands from 1783 until 1906, when ownership passed to the Rockstoh family. In recent times the firm continued to produce medals, badges and electoplated ornaments and components.
http://www.users.bigpond.com/gcates/jetons/The firm of Lauer of Nuremberg, Germany, was a main issuer and striker of miniature replica imitation currency toy coins, usually between 12mm and 14mm in diameter, for very many countries from about 1880 until about 1950. The metals were brass for the gold, iron - usually thinly plated with silver,for the silver denominations,but also zinc or nickel, and copper for the copper. Their purpose was to show the engraving skills of the firm and to act as advertising their business, for sale as toys for children and for dolls houses, for educational and teaching and for promotions for other businesses. A vast series, sometimes issued in a variety of boxes. Most of the boxes and some of the coins are now very rare and hard to find. The silver denominations are hard to find in mint condition as plating wears off and the iron oxidises. Other main issuers were Balmberger, Arld, Zeiser, Mayer and more. The reference book still current is "Toy Coins" issued in 1990 by David Rogers
just a start I know...seems it passed to the Rockstroh family in 1906