There are two different types of Swiss 20 franc coins. The first type features a laureate head of Liberty, wearing a coronet bearing the word "LIBERTAS", with the inscription "CONFEDERATIO HELVETICA". The reverse shows a 5 pointed star above the red cross of Switzerland on a simple shield within a wreath. The inscription on either side of the shield is 20 FR, with the date below. The letter B, the mintmark for Bern, appears below the wreath. This type was issued from 1886 through 1896.
The second type is known as Vreneli and has a female head with plaited hair, a garland of flowers and mountains in the distance, The inscription HELVETIA appears above her head. The reverse has a Swiss cross on a more ornate shield superimposed on an oak branch with ribbons. The value 20 FR appears at the sides of the shield, and the date below. This type was issued from 1897 through 1935, then again in 1947 and 1949.