• BACKGROUND IMAGE - On the left side there is a color transition area from orange to blue.
• BACKGROUND IMAGE - Some areas feature undulations with different patterns of fine lines, in orange brown, and violet tones.
• COLOR VARIATION - The texts "20 MIL PESOS", "BANCO DE LA REPÚBLICA" and the background of the word "COLOMBIA" are printed in brown and orange.

• The President´s face and standing image. .
• The text"20 MIL PESOS", in the upper left corner.
• The texts "BANCO DE LA REPÚBLICA" and "COLOMBIA".
• The signatures of the Governor of the Central Bank and its Deputy Executive Governor.
• Undulating stripes on the sides of the face.
• The common and scientific names of the ANÓN fruit.
• Five diagonal lines on the side edges.
• The number twenty in braille, at the bottom center (slightly to the left).

• MATCHING IMAGES - The left side features the text "BRC" partially printed in the front and back, complemented in its entirety when observed against the light.
• On the left side, holding the banknote against the light, a Zenú earring printed on the obverse is complemented by another one printed on the reverse, forming a "sombrero vueltiao" as seen from above. .
• WATERMARKS: On the left-hand side of the banknote, the President´s face can be seen against the light with a three-dimensional effect and the number.
• SECURITY RIBBON: The text "BRC" and the silhouette of the Zenú earring can be seen against the light in the security ribbon;.

• IMAGE WITH COLOR CHANGE AND MOVEMENT EFFECTS - The fruit of the anón changes from green to blue; simultaneously, the intense green circle in the fruit appears to move.
• HIDDEN IMAGE: When observing the banknote from an almost horizontal position at the height of the eyes from the lower right-hand corner, the text "BRC" can be seen on the brown and orange strip on the left-hand side of the face.

MICRO-TEXTS: To be observed with magnifying glass

• Some undulations located to the sides of the standing character, feature the text "BRC".
• On the orange strip located to the sides of the face, the texts "BANCO DE LA REPÚBLICA" and "BRC" can be found.
• On the orange strip located to the sides of the face, the texts "BANCO DE LA REPÚBLICA" and "BRC" can be found.
• In the turquoise-blue vertical strip, located on the right side of the banknote, the text "BANCO DE LA REPÚBLICA" can be found..

• MAIN IMAGE - Representation of the channels at La Mojana¹.
¹ Prehispanic hydraulic system of the Zenú people. Artistic design inspired by Nicolás Lozano´s illustration, published in Carmen María Jaramillo (1987). Así éramos los zenúes, Bogotá: Banco de la República. Fundación de Investigaciones Arqueológicas Nacionales.
• MAIN IMAGE - In the lower left-hand corner, the "sombrero vueltiao" stands out, complying with Act 908 of 2004.
• MAIN IMAGE - The engraving of a peasant loading arrow cane can be seen to the left.
• MAIN IMAGE - The text "20 MIL PESOS" can be found in the upper left corner.
• MAIN IMAGE - The logo of Banco de la República is placed at the upper right-hand corner.
• MAIN IMAGE - Three shiny green fragments stand out on the security ribbon.

• Representation of the channels at La Mojana, located at the bottom center.
• A peasant loading arrow cane.
• The "sombrero vueltiao."
• The poem by Benjam�n Puche Villadiego allusive to the "sombrero vueltiao."
• The logo of del Banco de la República.
• The texts "20 MIL PESOS" and "VEINTE MIL PESOS".
• The texts "SISTEMA HIDRÁULICO PREHISPÁNICO DE LOS ZENÚES" and "SOMBRERO VUELTIAO".

• MATCHING IMAGES - The text "BRC" (inverted) can be seen partially printed in the front and back, complemented in its entirety when observed against the light. On the left, holding the banknote against the light, a Zenú earring printed on the obverse is complemented by another one printed on the reverse, forming a "sombrero vueltiao."
• WATERMARKS - On the right-hand side of the banknote, when holding it against the light, Alfonso López Michelsen´s face can be seen against the light with a three-dimensional effect and the number "20" (inverted).
• SECURITY RIBBON - When observing the security ribbon to the light, the text "BRC" and the silhouette of the Zenú earring can be seen.

• SECURITY RIBBON - When tilting the banknote, the right-hand side of the security ribbon changes from green to violet.

MICRO-TEXTS: To be observed with magnifying glass

• In the upper right corner the poem by Benjamín Puche Villadiego, alusive to the "sombrero vueltiao" is printed in high relief.
• The text "BRC" can be observed in one of the collected canes, in some of the borders of the canals and in a semi-circle located to the left of the poem.
• The word "COLOMBIA" can be seen on the mochila of the peasant.
• To the right, the date of approval for issuance of the banknote and the text "IMPRENTA DE BILLETES - BANCO DE LA REPÚBLICA" can be seen.