Advertised as: ‘The Largest Toy/Train Show in the Northeast,’ this long running show boasts over 350 vendor tables of New & Antique Toys & Trains of all gauges, train parts, diecast cars, books, toy soldiers and all sorts of collectible toys.  This Sunday, at the  County Center, White Plains, NY, Rte 100 & Tarrytown Rd., Exit 22 Bronx River Parkway, or Exit 5 on 287 to 119E .  Visit their web site for more information…