1919 born in
1940 - 43 communications officer in Paris; first exposure to surreal art;
In his free time, painted watercolours of Parisian scenery
1944 - 45 Reconnaissance airman in Norway spent four months in captivity after end of the war.
1945 - 48 Freelance painter in Augsburg first experiments in surrealist painting
1948 The Currency reform made it necessary to earn a living in construction work and other jobs in addition to painting landscapes, portraits and continuing to develop his experiments in surrealist painting
since 1954 As freelance painter he received commissions to produce: Murals, sgraffiti, mosaics, stained glass windows, portraits. He continued to develop his own surrealist style
since 1963 Participated in the" Munich Big Art Exhibition ". Member of the "New Munich Artist Cooperative Society". Various one man shows in Germany and other countries
since 1975 Established a second residence in Puglia (Italy).Stimulated by the southern light he sometimes painted pictures in the impressionistic style
1986 - 90 Design of the title pages for the book supplements for the newspaper "Die Welt" ("The World")
1992 On the occasion of a retrospective exhibition at the Toskan Hall of Columns, he offered his paintings to the city of Augsburg on a ermanent loan basis.
Creation "The Organization for the Promotion of Surreal Art", its main aims being the presentation of Lettl´s art in Augsburg as well as making it accessible to the public.
since 1993 Official opening of the "Lettl-Atrium, Museum for Surreal Art", in the chamber of industry and commerce for Augsburg and Swabia.
1994 For the 75th birthday, the premiere of the play "The Board" for the picture series "Nachträume" (a play on words, which could be either "after-dreams" or "night-rooms") was presented.
1998 - 99 Cooperation at four surreal short films : "The incredible Lemon" "Riegele" "SUB" "The Operation"
1999 Exhibition of his aquatint etchings
2000 Major Retrospective Exhibition in Augsburg: "Lettl - 80 years"
In connection with this exhibition the project "Lettl in motion" was presented, produced and created for the city of Augsburg by five multimedia students of the technological university.