The Ralston Toy and Novelty Company, or Ralstoy, was founded in Ralston, Nebraska, in 1939.
Combining surviving molds and dies from Best Toy Co. of Manhattan, Kansas, and Kansas Toy Co. of Clifton, Kansas, the former Mayor of Ralston, Dr. Felix Despecher, started producing inexpensive slush-mold toys. When Dr. Despecher died and World War II dominated the need for lead and other metals, successor Paul Massey turned to making wooden toys. When the war was over, the first Ralstoy diecast models were produced. Some, but not all, Ralstoys have the Ralstoy name on them, due to the inheritance of dies from the other companies.
Current models are being produced as promotional items for moving companies and others.
I couldn't find any official website, and I think Ralstoy became Ralston in later years.
Ralston Toy & Novelty Co
5707 S 77th St
What's it worth? Take a look at this Ralstoy price guide: sold listings for a value indication.