In 1954 and 1955 herman de vries had 2 exhibitions, both in De Groene Kalebas, a jazz cafe in Amsterdam. The first exhibition was in May 1954 and the second in February 1955. The first became known by a review by J. Ermers, 'Herman de Vries in de moderne stroming', in Contact. Huisorgaan van de Plantenziektenkundige Dienst 9 (Wageningen June 1954) 185-186. Ermers described the exhibition and added a list of exhibited works:
- de reden
- c'est trop à dire, mais c'est bon
- très seul
- de keuze
- toch ...
- tout est séparé
- herinnering
- omdat het voorjaar is
- provence
- je suis mal
- mendelsohn's vioolconcert
- dark meadow (naar martha graham)
- mon diable
- symphonie no. 5 van beethoven en nog iets
- la fille
- c'est triste
- mon ami
From the second exhibition in February 1955 a list of exhibited works has been preserved in the herman de vries archive:
- de keuze
- je suis mal
- schilderij
- schilderij
- schilderij
- schilderij
- abstracte visie I
- abstracte visie II
- verruste [verroeste?] constellatie
- schilderij
- schilderij
- schilderij
- schilderij
- gouache, pour un ami
- gouache, la fille
- gouache, c'est triste
- gouache
- gouache, au printemps
- gouache
- gouache, stad