Prototype: Two-axle refrigerator car (type Tehs 50). Product description Model: This is the second edition of a SmileyWorld® car in Märklin Z-gauge. The car has an elaborate paint scheme. It also has black, nickel-plated solid wheel sets and separately applied metal platforms. Length over the buffers 54 mm / 2-1/8". One-time series. In 1997, Smileys appeared as a digital phenomenon, revolutionized technology, and paved the way for a new form of communication. These simple but expressive symbols quickly gained in popularity and became a trend that is still being seen today. With billions of Smileys sent out every day, they have become a permanent part of our digital conversations. Smileys possess an inherent power as a universal language of emotions and serve as dynamic abbreviations to express and acknowledge feelings.