Pastel on light cardboard, d 31.5 cm, signed and dated lower right: R. Hans 66; Verso signed, dated and inscribed
Watercolor on handmade paper, 30 x 24.5 cm, signed and dated lower right: R. Hans 66
Pastel on handmade paper, 62.8 x 48.9 cm, signed and dated lower right: R. Hans 1966; Verso signed, dated and inscribed
Pastel on cardboard, 63 x 49 cm signed and dated lower right: R. Hans 1966; Verso signed, dated and inscribed
Acrylic on hardboard, 61 x 40 cm, signed and dated top left: R. Hans 1966; Verso signed, dated and inscribed:R. Hans, 1966, blau-grün
Oil on board, 60.5 x 46.5 cm, signed and dated lower left: R. Hans 1967; Verso signiert, datiert und bezeichnet: R. Hans, Basel 1967, Entwurf blau-grün-grau
Acrylic on canvas, 115 x 60cm; Signed and dated on verso: "R. Hans 1967" 1967
Acrylic on canvas, 130 x 70.5cm; Verso signed, dated and titled: "R.Hans, 1967, blau mit grau"
Watercolor on handmade paper, 69 x 54 cm, signed and dated lower right: R. Hans 66
Acrylic on canvas, 70 x 55cm; Signed lower right: "R. Hans 1967"; Verso signed, dated and titled
Pastel on wove paper, 42 x 34cm, signed and dated lower right: "R.Hans 66"; Signed, dated and titled on verso: "R.Hans, 1966, freudiges Fest"
Pastel crayon on wove paper, 43 x 27cm, signed and dated lower right: "R. Hans 1966", signed, dated and titled on verso: "R.Hans, Ibiza 1966, blau-rot"
Watercolor on handmade paper, 69 x 45 cm, signed and dated lower right 'R. Hans 1967', signed, dated and titled on verso: "R.Hans, Basel 1967, gelb-violett"
Pastel on wove paper, 33 x 26,5cm; Signed and dated lower right: "R.Hans 66"; Verso signed, dated and titled: "R.Hans, 1966, gelb-violett"
Watercolor on handmade paper, 60,5 x 40.5 cm, signed and dated lower right: R. Hans 66
Pastel on handmade paper, 51 x 38cm, signed and dated lower right 'R. Hans 1966', signed, dated and titled on verso: "R.Hans, Basel 1966, rot-gelb-grün"
Acrylic on canvas, 62 x 106cm, signed and dated lower right 'R. Hans 1967', signed, dated and titled on verso: "R.Hans 1967, gelb-braun"
Acrylic on coarse canvas, 23 x 43.5 cm, signed and dated lower left: "R.Hans 1967, gelb-braun"