I’m trying to date a New Era New York Yankees cap. It’s from the Diamond Collection, so I know it’s from after 1986, and it has a white sweatband so I know it’s from before 2007, but I’m trying to narrow it down. I saw a picture of a cap that the owner claimed was from the 1990’s, and there was a Major League Baseball emblem on the back of the cap. Mine does not have an emblem on the back. The undervisor is green. Can anyone help me?