2" button shows the crossed steel beam logo forming a letter "T" for the company "Tishman Construction" who finished building the Twin Towers in 1972. The button is undated and has no maker's name but it was likely issued as part of some promotional event circa 1972. A rare and now historic button and only the second example we have seen. Button is essentially Mint. With it comes 3" button reading "The World Trade Center In The Port Of New York." Small loss of silver luster from metal back but the celluloid remains essentially Mint and the piece is circa 1970s. Also see World Trade Center Christmas related button #706.