City Dairy Toronto
A Yellow Wagon on Every Street
The model shown in the advertisement is a 1932 Speed Series International with refrigerated dairy body for ice cream delivery. In 1910 International Harvester of Chicago Illinois known for its farm machinery manufacturing bought the Chatham Wagon Works.The company wanted to grow its subsiduaries and by 1922 International began making trucks for the Canadian commercial market.
Image source March 1932 Maclean's