Depicts a miner facing left. Mining lamp on the right with the engraver's name underneath.

Marcel Rau was inspired by the works of Belgian sculptor and painter Constantin Emile Meunier (1831-1905). The miner's profile has been adopted from the statue "Monument of Work" located in Leaken district in Brussels.

A safety lamp is any of several types of lamp that provides illumination in coal mines and is designed to operate in air that may contain coal dust or gases, both of which are potentially flammable or explosive. Until the development of effective electric lamps in the early 1900s, miners used flame lamps to provide illumination. Open flame lamps could ignite flammable gases which collected in mines, causing explosions; safety lamps were developed to enclose the flame and prevent it from igniting the surrounding atmosphere.

Crowned facial value dividing date. Legend above (country name) in French.