Hello, if there are any Shea Stadium guys out there that might be so kind as to assist me with dating my pair of green seats I recently received it would be sincerely appreciated. I was told by S & S seating that the metal stands are original and were there since the opening in 64 but the plastic seat back and bottoms were replaced/added? sometime in the early 80's. Does anyone know the exact year/month the green seats were put in or replaced and if it was the same for all color seats? Thanks in advance for the time and effort on my behalf and happy collecting.

Matthew