In 1972, at the Nuremberg Toy Fair, German toy manufacturer Märklin introduced the tiniest model railroad yet in Z scale, which has a 1:220 ratio and a gauge of 6.5mm. Featuring a locomotive so small it could fit into a walnut shell, this new scale allowed full train sets to be built in briefcases, jewelry boxes, and guitar cases. The letter Z, the last character in both the English and German alphabets, was selected because at the time no...Continue Reading