According to the documents in the Chief of Ordnance correspondence files maintained by the National Archives, the Army only acquired the 3900 canteen/haversack straps and rifle slings. It may be that Mills manufactured more of the strap-slings for commercial sales or possibly for other U.S. services or even foreign sales. It is obvious that the British M1909 web rifle sling was developed from this project, and interesting to note how much more successful the web strap was in U.K. service. The only documents I researched where those in the Chief of Ordnance correspondence files and there was no indication of any others manufactured by Mills.