Manuals for the exact machine can be hard to find. You might get lucky and someone here might have one. I'm not familiar with the Bradford brand. Anyone with enough money to buy the minimum order could have whatever name they wanted put on a machine. It's very possible you can find a manual for your machine under a different name too. It's very common for the same basic machine to be sold under several different brands.
SewUSA sells a lot of different manuals. If you email them a picture of your machine they may have a manual that will work but under a different name.
http://sewusa.com/Sewing_Machine_Ins...on_Manuals.htm
Rodney