Rat Terrier for sale in Missouri

Mary Ellis has a three year old Rat Terrier for sale. She says that it is a purebred but does not have papers. she is asking $100. The image shown is a generic image she sent me, not the actual dog for sale. Listing added March 9, 2009

"She is a three year old rat terrier she has been spayed and has her shots and been wormed she is great with kids but does not like other dogs. She is full blooded and papered but the lady I got her from did not give them to me. I am located in Park Hills, Missouri my number is 573-431-4802 my email address is maryellis1976@yahoo.com"