http://www.ebay.com/itm/400950629490
This vintage bag was made by the Can-Pro Corp of Fond Du Lac, Wisconsin. It is made of heavy canvas, with a rubber bottom and a leather top with metal fastenings, so that the leather belt can thread through and lock. This size is a model 113. This particular bag was used by the Brooklyn Office, and later the Greenburgh office of S.B. Thomas, Inc., 33-01 Queens Blvd. Long Island City, NY, and has a metal plate with their info riveted to the bag. There is a riveted chain for a lock (with part of the lock attached) attached to the leather at the top of the bag.