Art Print Appreciation

Rajiv asked:


I came across the B&W print ; ‘Saturday Evening:Return from labour by W.R.Bigg.’ how do I identify the authenticity of the print? or whether it is a print itself and not a framed photocopy?
Links to the art;
http://us.easyart.com/posters/W.-R.-Bigg/Saturday-evening:-Return-from-labour-108815.html

Is there a website which helps us to identify art in general and artists signatures

Thank you for your help