[3] The meridian support was designed by Wilhelm von Hanno and erected in 1854 to commemorate the largest international measurement of the earth's shape and size.

The meridian support with plinth, column, chapter, globe is an example of which styles von Hanno was inspired by.

In a circular base on this upper part of the shelf rests the column.

[5] The survey was initiated by Wilhelm Struve who received support from King Oscar I of Norway-Sweden and Alexander I of Russia.

By arrangement of HM Oscar I and Emperors Alexander I and Nicolaus I by uninterrupted geometries.