The mail roller dater Model 130 is a solidly built roller stamp with wavy lines. It provides various date prints and has a postmark diameter of 29 mm, while the roller is 26 mm in diameter. It provides even prints on irregular surfaces, and its built-in ink roller allows for self-inking.
It prints a number date text using a stylo setup. Wheels and roller are made of steel and the wheels are locked in place by a threaded pin. The size of each figure is 3 mm and the figures are in block style. Its net weight is about 400 g.