Vintage Apple Computer Employee Button.  Reads "National Apple User Group Conference '90".  Dates to 1990.  Authentic, from a former Apple Employee.  Measures approx. 3.5" in diameter.  This item is used and is in good condition with light signs of use. I have noted some light surface wear.  Please see photo for more details.  Will be shipped in a box.  See my other listings for similar items, I'm happy to combine on shipping for items purchased at the same time.