Weeden Mfg. Co., founded by William N. Weeden in New Bedford, Massachusetts produced working model steam toy engines from 1884. Weeden also made steam boats, fire engines, and cars with steam as motor power. Weeden developed several ultimate rarities among clockwork tin mechanical banks, including "Ding Dong Bell" and "Japanese Ball Tosser".
The Weeden Manufacturing Company was sold to 'National Playthings' in 1942 which ended the manufacturing of model steam engines in 1952.
Website dedicated to Weeden: Weeden Steam
What's it worth? Take a look at this Weeden price guide: sold listings for a value indication.