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![HO Atlas Code 100 12 1/2° CROSSING 177 - MPM Hobbies](http://mpmhobbies.com/cdn/shop/files/ho-atlas-code-100-12-12-crossing-177-mpm-hobbies_436x436.jpg?v=1705826614)
HO Code 100 with black ties and nickel silver rail. Precisely engineered angles of intersection to solve most crossing requirements. The 12 1/2 degree crossings are especially suited for junctions between double-track mainlines. A wide variety of single and double-track wyes and many other arrangements appear in Atlas layout instruction books.