Authentic German Iron Cross Medal 1914 with original presentation box For Sale

My Dad served in the Army Air Corps during World War II and was stationed in Berlin after VE day. When he came home in 1946, he brought back a lot of souvenirs from the war. We have been sorting through his memorabilia and have decided to list some of his things on . There are several dozen items - I will be listing them over the next few days. Please message me if you have any questions about the items. He was a meticulous record keeper, and left notes with almost all of the items. I will do my best to describe them in detail.
This is a German World War I iron cross medallion. It is dated 1914. It is in a small, black presentation box with a push button closure. It has a \'screw on\' back. It doesn\'t have a loop on top. I have been reading a lot of web sites about how to determine whether it is a real iron cross or a reproduction. As far as I can tell, I think that is authentic. I can slide a piece of paper between the black part and the frame, which demonstrates that it is made from at least 2 pieces. And with a magnifying glass I can see a solder seam around some of the edges. It has definitely never been cleaned or touched up in any way - I\'m not sure Dad ever even looked after he brought it home in 1946.