Posted By: 
petecldIt is a nice pose but the buyer really got suckered on this one.  
- There's no evidence this is a "proof".  It's likely just a print.  Albeit a nice looking one
- The "ad" is for a competitior's brand so I don't see it being legitimate.  Why would Allen & Ginter advertise with a Goodwin item?
- Even the frame is even faked.  The top/bottom match styles but the sides are a different style.  Look at the corners of the inner edges - they don't meet.  
In my eyes this greatly lessens the probability the print is even real.