Pigeon grade?|General Discussions & Questions|Forum|Winchester Collector

after being warned more than once about the fake pigeon grade, how does one reference the correct pigeon stamp- and are all of the stamps the same? I have a friend with a genuine pigeon grade, so I have that. But am wondering if the same stamped was used across the board or not. I had a gentleman tell me that it was the way the applied it as opposed to how people are faking them. I have looked through all of my books but no pictures. I always like to figure it out myself but I am also not afraid to ask for help.the gun in question is from 1956 if that helps at all