Depicts in the centre the Modulor with at its right the double helix of the DNA; both are inside a rectangle. At the sides are schematic representations of modern technology. At the right are also present the date and the "RI" monogram. Name of the author below the Module., mint mark "R" above.

The Modulor is an anthropometric scale of proportions devised by the Swiss-born French architect Le Corbusier (1887–1965). It was developed as a visual bridge between two incompatible scales, the Imperial and the metric systems. It is based on the height of a man with his arm raised. Modulor considered the standard human height as 1.75 m, excluding feminine measures. The dimensions were refined with overall height of raised arm set at 2.26 m. It was used as a system to set out a number of Le Corbusier's buildings and was later codified into two books.

At the centre is a reproduction of a bas-relief from the 2nd century representing the work of man. The bas-relief separates the value above and at the bottom together with twelve stars (six above and six below) placed along the rim.