Vintage Cast Iron JA Cross DBL Beam Hay Trolley Barn Pulley Tool (Pat 1876). Antique Vintage Cast Iron Hay Trolley Barn Pulley Tool._gsrx_vers_1436 GS 9.0.5 (1436). This item is in the category "Collectibles\Tools, Hardware & Locks\Tools\Pulleys, Block & Tackle". The seller is "country_01" and is located in this country: US. This item can be shipped to United States.