Throughout most of Shea Stadium’s existence in Flushing Meadows, Queens (except for the last couple of years, when Citifield was being constructed) a large, four-sided clock tower was visible beyond the left-field fence. This was the Serval Zipper Factory, latterly a U-Haul distributorship. The clocks, of course, stopped long ago. In their early days at Shea, fans could see a neon sign on the building saying SERVAL ZIPPERS blink on and off.
The structure was originally the Queens office of William & John Sloane Furniture Co. on Lawrence St. (now College Point Blvd.) in Flushing. The factory and its clock tower preceded Shea Stadium by several decades, and will now likely survive it for several decades.
The Zipper Factory recently enjoyed some renovations, but not, alas, restoration of its clock.