Is this done in needlework or painted on silk ?? What you need to do first is to contact the museum that has Lincolns personal collection and see if he ever owned a piece like this !! Keep in mind that items he owned have been reproduced ever since his assination !! Your picture may be an old reproduction !! And like Tales said I would go back to the person that had the sale and start asking questions !! How did they aquire the picture, are they related to Allen Francis !! If you can`t get anywhere there,, get the lincoln museum to help you !! Thats the most important thing,, tracing it to Lincoln !! Thats where the value is,, the rest is secondary !!