Description: This model was initially named ""Paris City Gas Pumps"" when it was released in 1936 with reference 49 C. At the time, the box was yellow; and the service valves and meter were highlighted in white. Later, the name was simplified to "double-flow gas pump." The version presented here is a post-war version, as the meter and ventilation system are highlighted in white. For those who want to know more, it should be noted that this pump exists in two different versions: On one, both meters are positioned at 11 o'clock, while another molding exists with a face on which the meter is positioned at 11 o'clock but the other face has a meter positioned at 10 o'clock! These pumps will always be distributed in boxes of six. The boxes will be yellow pre-war, then gray from 1948. In addition, from 1949, the pump will now be sold without its hoses. This is therefore not necessarily a deficiency. The colors were blue, turquoise, green, red, yellow, cream, and gold. To conclude, between the seven colors, the pre- or post-war versions, the two different moldings, and the different types of boxes, you can have fun creating variants!